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Ancient DNA - Wikipedia
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History of ancient DNA studies subsection</span> </button> <ul id="toc-History_of_ancient_DNA_studies-sublist" class="vector-toc-list"> <li id="toc-1980s" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#1980s"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>1980s</span> </div> </a> <ul id="toc-1980s-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-1990s" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#1990s"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>1990s</span> </div> </a> <ul id="toc-1990s-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-2000s" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#2000s"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>2000s</span> </div> </a> <ul id="toc-2000s-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-2020s" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#2020s"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>2020s</span> </div> </a> <ul id="toc-2020s-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Problems_and_errors" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Problems_and_errors"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Problems and errors</span> </div> </a> <button aria-controls="toc-Problems_and_errors-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Problems and errors subsection</span> </button> <ul id="toc-Problems_and_errors-sublist" class="vector-toc-list"> <li id="toc-Degradation_processes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Degradation_processes"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Degradation processes</span> </div> </a> <ul id="toc-Degradation_processes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Age_limit" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Age_limit"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Age limit</span> </div> </a> <ul id="toc-Age_limit-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Contamination" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Contamination"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Contamination</span> </div> </a> <ul id="toc-Contamination-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Authentication_of_aDNA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Authentication_of_aDNA"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Authentication of aDNA</span> </div> </a> <ul id="toc-Authentication_of_aDNA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Non-human_aDNA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Non-human_aDNA"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Non-human aDNA</span> </div> </a> <ul id="toc-Non-human_aDNA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Human_aDNA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Human_aDNA"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Human aDNA</span> </div> </a> <button aria-controls="toc-Human_aDNA-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Human aDNA subsection</span> </button> <ul id="toc-Human_aDNA-sublist" class="vector-toc-list"> <li id="toc-Sources" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sources"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Sources</span> </div> </a> <ul id="toc-Sources-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Results" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Results"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Results</span> </div> </a> <ul id="toc-Results-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Researchers_specializing_in_ancient_DNA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Researchers_specializing_in_ancient_DNA"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Researchers specializing in ancient DNA</span> </div> </a> <ul id="toc-Researchers_specializing_in_ancient_DNA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Further_reading" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Further_reading"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Further reading</span> </div> </a> <ul id="toc-Further_reading-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" 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Available in 21 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-21" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">21 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/ADN_antic" title="ADN antic – Catalan" lang="ca" hreflang="ca" data-title="ADN antic" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Fossilt_DNA" title="Fossilt DNA – Danish" lang="da" hreflang="da" data-title="Fossilt DNA" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/ADNA" title="ADNA – German" lang="de" hreflang="de" data-title="ADNA" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Iidne_DNA" title="Iidne DNA – Estonian" lang="et" hreflang="et" data-title="Iidne DNA" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/ADN_antiguo" title="ADN antiguo – Spanish" lang="es" hreflang="es" data-title="ADN antiguo" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/DNA_fosil" title="DNA fosil – Basque" lang="eu" hreflang="eu" data-title="DNA fosil" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AF%DB%8C%D8%B1%DB%8C%D9%86%D9%87_%D8%AF%DB%8C%E2%80%8C%D8%A7%D9%86%E2%80%8C%D8%A7%DB%8C" title="دیرینه دیانای – Persian" lang="fa" hreflang="fa" data-title="دیرینه دیانای" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/ADN_fossile" title="ADN fossile – French" lang="fr" hreflang="fr" data-title="ADN fossile" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/ADN_antigo" title="ADN antigo – Galician" lang="gl" hreflang="gl" data-title="ADN antigo" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/DNA_antico" title="DNA antico – Italian" lang="it" hreflang="it" data-title="DNA antico" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/DNA_%D7%A2%D7%AA%D7%99%D7%A7" title="DNA עתיק – Hebrew" lang="he" hreflang="he" data-title="DNA עתיק" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%90%D0%BD%D1%82%D0%B8%D1%87%D0%BA%D0%B0_%D0%94%D0%9D%D0%9A" title="Античка ДНК – Macedonian" lang="mk" hreflang="mk" data-title="Античка ДНК" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/DNA_purba" title="DNA purba – Malay" lang="ms" hreflang="ms" data-title="DNA purba" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%8F%A4%E4%BB%A3DNA" title="古代DNA – Japanese" lang="ja" hreflang="ja" data-title="古代DNA" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Antyczny_DNA" title="Antyczny DNA – Polish" lang="pl" hreflang="pl" data-title="Antyczny DNA" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/ADN_antigo" title="ADN antigo – Portuguese" lang="pt" hreflang="pt" data-title="ADN antigo" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%B5%D0%BA%D0%B2%D0%B5%D0%BD%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5_%D0%B4%D1%80%D0%B5%D0%B2%D0%BD%D0%B5%D0%B9_%D0%94%D0%9D%D0%9A" title="Секвенирование древней ДНК – Russian" lang="ru" hreflang="ru" data-title="Секвенирование древней ДНК" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%B4%E0%B7%94%E0%B6%BB%E0%B7%8F%E0%B6%AB_DNA" title="පුරාණ DNA – Sinhala" lang="si" hreflang="si" data-title="පුරාණ DNA" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Muinais-DNA" title="Muinais-DNA – Finnish" lang="fi" hreflang="fi" data-title="Muinais-DNA" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Antik_DNA" title="Antik DNA – Turkish" lang="tr" hreflang="tr" data-title="Antik DNA" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D1%82%D0%B0%D1%80%D0%BE%D0%B4%D0%B0%D0%B2%D0%BD%D1%8F_%D0%94%D0%9D%D0%9A" title="Стародавня ДНК – Ukrainian" lang="uk" hreflang="uk" data-title="Стародавня ДНК" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q290447#sitelinks-wikipedia" 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searchaux" style="display:none">Method of archaeological study</div> <p class="mw-empty-elt"> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Ancient_DNA.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Ancient_DNA.png/220px-Ancient_DNA.png" decoding="async" width="220" height="216" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Ancient_DNA.png/330px-Ancient_DNA.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Ancient_DNA.png/440px-Ancient_DNA.png 2x" data-file-width="606" data-file-height="594" /></a><figcaption>Cross-linked DNA extracted from the 4,000-year-old liver of the ancient Egyptian priest Nekht-Ankh</figcaption></figure> <p><b>Ancient DNA</b> (<b>aDNA</b>) is <a href="/wiki/DNA" title="DNA">DNA</a> isolated from ancient sources (typically <a href="/wiki/Biological_specimen" title="Biological specimen">specimens</a>, but also <a href="/wiki/Environmental_DNA" title="Environmental DNA">environmental DNA</a>).<sup id="cite_ref-Pevsner_2015_1-0" class="reference"><a href="#cite_note-Pevsner_2015-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Jones_2016_2-0" class="reference"><a href="#cite_note-Jones_2016-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Due to degradation processes (including <a href="/wiki/Crosslinking_of_DNA" title="Crosslinking of DNA">cross-linking</a>, <a href="/wiki/Deamination" title="Deamination">deamination</a> and <a href="/wiki/DNA_fragmentation" title="DNA fragmentation">fragmentation</a>)<sup id="cite_ref-Anderson_2023_3-0" class="reference"><a href="#cite_note-Anderson_2023-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> ancient DNA is more degraded in comparison with contemporary genetic material.<sup id="cite_ref-Allentoft,_M.E._2012_4-0" class="reference"><a href="#cite_note-Allentoft,_M.E._2012-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Genetic material has been recovered from paleo/archaeological and historical skeletal material, <a href="/wiki/Mummy" title="Mummy">mummified</a> tissues, archival collections of non-frozen medical specimens, preserved plant remains, ice and from <a href="/wiki/Permafrost" title="Permafrost">permafrost</a> cores, marine and lake sediments and <a href="/wiki/Excavation_(archaeology)" class="mw-redirect" title="Excavation (archaeology)">excavation</a> dirt. </p><p>Even under the best preservation conditions, there is an upper boundary of 0.4–1.5 million years for a sample to contain sufficient DNA for sequencing technologies.<sup id="cite_ref-Willerslev,_E._2004._pp.9_5-0" class="reference"><a href="#cite_note-Willerslev,_E._2004._pp.9-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The oldest DNA sequenced from physical specimens are from <a href="/wiki/Mammoth" title="Mammoth">mammoth</a> molars in Siberia over 1 million years old.<sup id="cite_ref-van_der_Valk_2021_6-0" class="reference"><a href="#cite_note-van_der_Valk_2021-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> In 2022, two-million year old genetic material was recovered from sediments in <a href="/wiki/Greenland" title="Greenland">Greenland</a>, and is currently considered the oldest DNA discovered so far.<sup id="cite_ref-NYT-20221207_7-0" class="reference"><a href="#cite_note-NYT-20221207-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-NAT-20221207_8-0" class="reference"><a href="#cite_note-NAT-20221207-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History_of_ancient_DNA_studies">History of ancient DNA studies</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=1" title="Edit section: History of ancient DNA studies"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="1980s">1980s</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=2" title="Edit section: 1980s"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Equus_quagga_quagga,_coloured.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Equus_quagga_quagga%2C_coloured.jpg/220px-Equus_quagga_quagga%2C_coloured.jpg" decoding="async" width="220" height="154" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Equus_quagga_quagga%2C_coloured.jpg/330px-Equus_quagga_quagga%2C_coloured.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Equus_quagga_quagga%2C_coloured.jpg/440px-Equus_quagga_quagga%2C_coloured.jpg 2x" data-file-width="1138" data-file-height="798" /></a><figcaption>Quagga (Equus quagga quagga), an extinct sub-species of zebra.</figcaption></figure> <p>The first study of what would come to be called aDNA was conducted in 1984, when Russ Higuchi and colleagues at the <a href="/wiki/University_of_California,_Berkeley" title="University of California, Berkeley">University of California, Berkeley</a> reported that traces of DNA from a museum specimen of the <a href="/wiki/Quagga" title="Quagga">Quagga</a> not only remained in the specimen over 150 years after the death of the individual, but could be extracted and sequenced.<sup id="cite_ref-pmid6504142_9-0" class="reference"><a href="#cite_note-pmid6504142-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Over the next two years, through investigations into natural and artificially mummified specimens, <a href="/wiki/Svante_P%C3%A4%C3%A4bo" title="Svante Pääbo">Svante Pääbo</a> confirmed that this phenomenon was not limited to relatively recent museum specimens but could apparently be replicated in a range of <a href="/wiki/Mummy" title="Mummy">mummified</a> human samples that dated as far back as several thousand years.<sup id="cite_ref-Pääbo_1985a_10-0" class="reference"><a href="#cite_note-Pääbo_1985a-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Pääbo_1985b_11-0" class="reference"><a href="#cite_note-Pääbo_1985b-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Pääbo_1986_12-0" class="reference"><a href="#cite_note-Pääbo_1986-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>The laborious processes that were required at that time to sequence such DNA (through <a href="/wiki/Bacterial_cloning" class="mw-redirect" title="Bacterial cloning">bacterial cloning</a>) were an effective brake on the study of ancient DNA (aDNA) and the field of <a href="/wiki/Museomics" title="Museomics">museomics</a>. However, with the development of the <a href="/wiki/Polymerase_chain_reaction" title="Polymerase chain reaction">Polymerase Chain Reaction</a> (PCR) in the late 1980s, the field began to progress rapidly.<sup id="cite_ref-pmid3431465_13-0" class="reference"><a href="#cite_note-pmid3431465-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Raxworthy_14-0" class="reference"><a href="#cite_note-Raxworthy-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Saiki_1988_15-0" class="reference"><a href="#cite_note-Saiki_1988-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> Double primer PCR amplification of aDNA (jumping-PCR) can produce highly skewed and non-authentic sequence artifacts. Multiple primer, <a href="/wiki/Nested_polymerase_chain_reaction" title="Nested polymerase chain reaction">nested PCR</a> strategy was used to overcome those shortcomings. </p> <div class="mw-heading mw-heading3"><h3 id="1990s">1990s</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=3" title="Edit section: 1990s"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Baltic_Amber.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Baltic_Amber.jpg/220px-Baltic_Amber.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Baltic_Amber.jpg/330px-Baltic_Amber.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Baltic_Amber.jpg/440px-Baltic_Amber.jpg 2x" data-file-width="3057" data-file-height="2039" /></a><figcaption>A diptera (Mycetophilidae) from the Eocene (40-50 million years ago) in a piece of transparent Baltic amber along with other smaller inclusions. Shown under daylight (big photograph) and under UV light (small photograph).</figcaption></figure> <p>The post-PCR era heralded a wave of publications as numerous research groups claimed success in isolating aDNA. Soon a series of incredible findings had been published, claiming authentic DNA could be extracted from specimens that were millions of years old, into the realms of what Lindahl (1993b) has labelled <a href="/wiki/Antediluvian" title="Antediluvian">Antediluvian</a> DNA.<sup id="cite_ref-Lindahl_1993b_16-0" class="reference"><a href="#cite_note-Lindahl_1993b-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> The majority of such claims were based on the retrieval of DNA from organisms preserved in <a href="/wiki/Amber" title="Amber">amber</a>. Insects such as stingless bees,<sup id="cite_ref-Cano_''et_al.''_1992a_17-0" class="reference"><a href="#cite_note-Cano_''et_al.''_1992a-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Cano_''et_al.''_1992b_18-0" class="reference"><a href="#cite_note-Cano_''et_al.''_1992b-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> termites,<sup id="cite_ref-pmid18979000_19-0" class="reference"><a href="#cite_note-pmid18979000-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> and wood gnats,<sup id="cite_ref-pmid7888749_20-0" class="reference"><a href="#cite_note-pmid7888749-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> as well as plant<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> and bacterial<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> sequences were said to have been extracted from <a href="/wiki/Dominica" title="Dominica">Dominican</a> amber dating to the <a href="/wiki/Oligocene" title="Oligocene">Oligocene</a> epoch. Still older sources of Lebanese amber-encased <a href="/wiki/Weevil" title="Weevil">weevils</a>, dating to within the <a href="/wiki/Cretaceous" title="Cretaceous">Cretaceous</a> epoch, reportedly also yielded authentic DNA.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> Claims of DNA retrieval were not limited to amber. </p><p>Reports of several sediment-preserved plant remains dating to the <a href="/wiki/Miocene" title="Miocene">Miocene</a> were published.<sup id="cite_ref-Golenberg_''et_al.''_1990_24-0" class="reference"><a href="#cite_note-Golenberg_''et_al.''_1990-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Golenberg_1991_25-0" class="reference"><a href="#cite_note-Golenberg_1991-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> Then in 1994, Woodward <i>et al.</i> reported what at the time was called the most exciting results to date<sup id="cite_ref-pmid7973705_26-0" class="reference"><a href="#cite_note-pmid7973705-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> — mitochondrial cytochrome b sequences that had apparently been extracted from dinosaur bones dating to more than 80 million years ago. When in 1995 two further studies reported dinosaur DNA sequences extracted from a Cretaceous egg,<sup id="cite_ref-An_''et_al.''_1995_27-0" class="reference"><a href="#cite_note-An_''et_al.''_1995-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Li_1995_28-0" class="reference"><a href="#cite_note-Li_1995-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> it seemed that the field would revolutionize knowledge of the Earth's evolutionary past. Even these extraordinary ages were topped by the claimed retrieval of 250-million-year-old halobacterial sequences from <a href="/wiki/Halite" title="Halite">halite</a>.<sup id="cite_ref-pmid11057666_29-0" class="reference"><a href="#cite_note-pmid11057666-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid12024211_30-0" class="reference"><a href="#cite_note-pmid12024211-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </p><p>The development of a better understanding of the kinetics of DNA preservation, the risks of sample contamination and other complicating factors led the field to view these results more skeptically. Numerous careful attempts failed to replicate many of the findings, and all of the decade's claims of multi-million year old aDNA would come to be dismissed as inauthentic.<sup id="cite_ref-PääboPoinar2004_31-0" class="reference"><a href="#cite_note-PääboPoinar2004-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="2000s">2000s</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=4" title="Edit section: 2000s"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Single primer extension amplification was introduced in 2007 to address postmortem DNA modification damage.<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> Since 2009 the field of aDNA studies has been revolutionized with the introduction of much cheaper research techniques.<sup id="cite_ref-FOOTNOTEReich2018_33-0" class="reference"><a href="#cite_note-FOOTNOTEReich2018-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> The use of high-throughput <a href="/wiki/Next_Generation_Sequencing" class="mw-redirect" title="Next Generation Sequencing">Next Generation Sequencing</a> (NGS) techniques in the field of ancient DNA research has been essential for reconstructing the genomes of ancient or extinct organisms. A single-stranded DNA (ssDNA) library preparation method has sparked great interest among ancient DNA (aDNA) researchers.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg/220px-Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg" decoding="async" width="220" height="167" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg/330px-Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg/440px-Svante_Paabo_and_Fumio_Kishida_20230201_1.jpg 2x" data-file-width="2600" data-file-height="1970" /></a><figcaption>Svante Pääbo (left) with his medal for the Nobel Prize on Physiology or Medicine.</figcaption></figure> <p>In addition to these technical innovations, the start of the decade saw the field begin to develop better standards and criteria for evaluating DNA results, as well as a better understanding of the potential pitfalls.<sup id="cite_ref-PääboPoinar2004_31-1" class="reference"><a href="#cite_note-PääboPoinar2004-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid15719062_36-0" class="reference"><a href="#cite_note-pmid15719062-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="2020s">2020s</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=5" title="Edit section: 2020s"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Autumn of 2022, the Nobel Prize of Physiology or Medicine was awarded to Svante Pääbo "for his discoveries concerning the genomes of extinct hominins and human evolution".<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> A few days later, on the 7th of December 2022, a study in <i><a href="/wiki/Nature_(journal)" title="Nature (journal)">Nature</a></i> reported that two-million year old genetic material was found in Greenland, and is currently considered the oldest DNA discovered so far.<sup id="cite_ref-NYT-20221207_7-1" class="reference"><a href="#cite_note-NYT-20221207-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-NAT-20221207_8-1" class="reference"><a href="#cite_note-NAT-20221207-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Problems_and_errors">Problems and errors</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=6" title="Edit section: Problems and errors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Degradation_processes">Degradation processes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=7" title="Edit section: Degradation processes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Due to degradation processes (including cross-linking, deamination and fragmentation),<sup id="cite_ref-Anderson_2023_3-1" class="reference"><a href="#cite_note-Anderson_2023-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> ancient DNA is of lower quality than modern genetic material.<sup id="cite_ref-Allentoft,_M.E._2012_4-1" class="reference"><a href="#cite_note-Allentoft,_M.E._2012-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The damage characteristics and ability of aDNA to survive through time restricts possible analyses and places an upper limit on the age of successful samples.<sup id="cite_ref-Allentoft,_M.E._2012_4-2" class="reference"><a href="#cite_note-Allentoft,_M.E._2012-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> There is a theoretical correlation between time and DNA degradation,<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> although differences in environmental conditions complicate matters. Samples subjected to different conditions are unlikely to predictably align to a uniform age-degradation relationship.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> The environmental effects may even matter after excavation, as DNA decay-rates may increase,<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> particularly under fluctuating storage conditions.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> Even under the best preservation conditions, there is an upper boundary of 0.4 to 1.5 million years for a sample to contain sufficient DNA for contemporary sequencing technologies.<sup id="cite_ref-Willerslev,_E._2004._pp.9_5-1" class="reference"><a href="#cite_note-Willerslev,_E._2004._pp.9-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Research into the decay of <a href="/wiki/Mitochondrial_DNA" title="Mitochondrial DNA">mitochondrial</a> and <a href="/wiki/Nuclear_DNA" title="Nuclear DNA">nuclear DNA</a> in <a href="/wiki/Moa" title="Moa">moa</a> bones has modelled mitochondrial DNA degradation to an average length of 1 <a href="/wiki/Base_pair" title="Base pair">base pair</a> after 6,830,000 years at −5 °C.<sup id="cite_ref-Allentoft,_M.E._2012_4-3" class="reference"><a href="#cite_note-Allentoft,_M.E._2012-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The decay kinetics have been measured by accelerated aging experiments, further displaying the strong influence of storage temperature and humidity on DNA decay.<sup id="cite_ref-grass_42-0" class="reference"><a href="#cite_note-grass-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> Nuclear DNA degrades at least twice as fast as mtDNA. Early studies that reported recovery of much older DNA, for example from <a href="/wiki/Cretaceous" title="Cretaceous">Cretaceous</a> <a href="/wiki/Dinosaur" title="Dinosaur">dinosaur</a> remains, may have stemmed from contamination of the sample. </p> <div class="mw-heading mw-heading3"><h3 id="Age_limit">Age limit</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=8" title="Edit section: Age limit"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A critical review of ancient DNA literature through the development of the field highlights that few studies have succeeded in amplifying DNA from remains older than several hundred thousand years.<sup id="cite_ref-pmid12702808_43-0" class="reference"><a href="#cite_note-pmid12702808-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> A greater appreciation for the risks of environmental contamination and studies on the <a href="/wiki/Chemical_stability" title="Chemical stability">chemical stability</a> of DNA have raised concerns over previously reported results. The alleged dinosaur DNA was later revealed to be human <a href="/wiki/Y-chromosome" class="mw-redirect" title="Y-chromosome">Y-chromosome</a>.<sup id="cite_ref-pmid7605504_44-0" class="reference"><a href="#cite_note-pmid7605504-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> The DNA reported from encapsulated <a href="/wiki/Halobacteria" class="mw-redirect" title="Halobacteria">halobacteria</a> has been criticized based on its similarity to modern bacteria, which hints at contamination,<sup id="cite_ref-pmid15719062_36-1" class="reference"><a href="#cite_note-pmid15719062-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> or they may be the product of long-term, low-level <a href="/wiki/Metabolic" class="mw-redirect" title="Metabolic">metabolic</a> activity.<sup id="cite_ref-pmid17728401_45-0" class="reference"><a href="#cite_note-pmid17728401-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> </p><p>aDNA may contain a large number of postmortem <a href="/wiki/Mutation" title="Mutation">mutations</a>, increasing with time. Some regions of polynucleotide are more susceptible to this degradation, allowing erroneous sequence data to bypass statistical filters used to check the validity of data.<sup id="cite_ref-PääboPoinar2004_31-2" class="reference"><a href="#cite_note-PääboPoinar2004-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> Due to sequencing errors, great caution should be applied to interpretation of population size.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> Substitutions resulting from <a href="/wiki/Deamination" title="Deamination">deamination</a> of <a href="/wiki/Cytosine" title="Cytosine">cytosine</a> residues are vastly over-represented in the ancient DNA sequences. Miscoding of <a href="/wiki/Cytosine" title="Cytosine">C</a> to <a href="/wiki/Thymine" title="Thymine">T</a> and <a href="/wiki/Guanine" title="Guanine">G</a> to <a href="/wiki/Adenine" title="Adenine">A</a> accounts for the majority of errors.<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Contamination">Contamination</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=9" title="Edit section: Contamination"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Another problem with ancient DNA samples is contamination by modern human DNA and by microbial DNA (most of which is also ancient).<sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> New methods have emerged in recent years to prevent possible contamination of aDNA samples, including conducting extractions under extreme sterile conditions, using special adapters to identify endogenous molecules of the sample (distinguished from those introduced during analysis), and applying bioinformatics to resulting sequences based on known reads in order to approximate rates of contamination.<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-51" class="reference"><a href="#cite_note-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Authentication_of_aDNA">Authentication of aDNA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=10" title="Edit section: Authentication of aDNA"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Development in the aDNA field in the 2000s increased the importance of authenticating recovered DNA to confirm that it is indeed ancient and not the result of recent contamination. As DNA degrades over time, the nucleotides that make up the DNA may change, especially at the ends of the DNA molecules. The deamination of cytosine to uracil at the ends of DNA molecules has become a way of authentication. During DNA sequencing, the DNA polymerases will incorporate an adenine (A) across from the uracil (U), leading to cytosine (C) to thymine (T) substitutions in the aDNA data.<sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> These substitutions increase in frequency as the sample gets older. Frequency measurement of the C-T level, ancient DNA damage, can be made using various software such as mapDamage2.0 or PMDtools <sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup> and interactively on metaDMG.<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> Due to hydrolytic depurination, DNA fragments into smaller pieces, leading to single-stranded breaks. Combined with the damage pattern, this short fragment length can also help differentiate between modern and ancient DNA.<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Non-human_aDNA">Non-human aDNA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=11" title="Edit section: Non-human aDNA"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Despite the problems associated with 'antediluvian' DNA, a wide and ever-increasing range of aDNA sequences have now been published from a range of animal and plant <a href="/wiki/Taxon" title="Taxon">taxa</a>. Tissues examined include artificially or naturally mummified animal remains,<sup id="cite_ref-pmid6504142_9-1" class="reference"><a href="#cite_note-pmid6504142-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid2755507_58-0" class="reference"><a href="#cite_note-pmid2755507-58"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup> bone,<sup id="cite_ref-Hagelberg_''et_al.''_1989_59-0" class="reference"><a href="#cite_note-Hagelberg_''et_al.''_1989-59"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Cooper_''et_al.''_1992_60-0" class="reference"><a href="#cite_note-Cooper_''et_al.''_1992-60"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Hagelberg_''et_al.''_1994_61-0" class="reference"><a href="#cite_note-Hagelberg_''et_al.''_1994-61"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid7991628_62-0" class="reference"><a href="#cite_note-pmid7991628-62"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> shells,<sup id="cite_ref-63" class="reference"><a href="#cite_note-63"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup> paleofaeces,<sup id="cite_ref-pmid9665881_64-0" class="reference"><a href="#cite_note-pmid9665881-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid11123610_65-0" class="reference"><a href="#cite_note-pmid11123610-65"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup> alcohol preserved specimens,<sup id="cite_ref-Junqueira_''et_al.''_2002_66-0" class="reference"><a href="#cite_note-Junqueira_''et_al.''_2002-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> rodent middens,<sup id="cite_ref-pmid11975707_67-0" class="reference"><a href="#cite_note-pmid11975707-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup> dried plant remains,<sup id="cite_ref-Goloubinoff_''et_al.''_1993_68-0" class="reference"><a href="#cite_note-Goloubinoff_''et_al.''_1993-68"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Dumolin-Lapegue_''et_al.''_1999_69-0" class="reference"><a href="#cite_note-Dumolin-Lapegue_''et_al.''_1999-69"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup> and recently, extractions of animal and plant DNA directly from <a href="/wiki/Soil" title="Soil">soil</a> samples.<sup id="cite_ref-pmid15875564_70-0" class="reference"><a href="#cite_note-pmid15875564-70"><span class="cite-bracket">[</span>70<span class="cite-bracket">]</span></a></sup> </p><p>In June 2013, a group of researchers including <a href="/wiki/Eske_Willerslev" title="Eske Willerslev">Eske Willerslev</a>, <a href="/wiki/Marcus_Thomas_Pius_Gilbert" title="Marcus Thomas Pius Gilbert">Marcus Thomas Pius Gilbert</a> and Orlando Ludovic of the <a href="/wiki/Centre_for_Geogenetics" title="Centre for Geogenetics">Centre for Geogenetics</a>, <a href="/wiki/Natural_History_Museum_of_Denmark" title="Natural History Museum of Denmark">Natural History Museum of Denmark</a> at the <a href="/wiki/University_of_Copenhagen" title="University of Copenhagen">University of Copenhagen</a>, announced that they had sequenced the DNA of a 560–780 thousand year old horse, using material extracted from a leg bone found buried in <a href="/wiki/Permafrost" title="Permafrost">permafrost</a> in Canada's <a href="/wiki/Yukon" title="Yukon">Yukon</a> territory.<sup id="cite_ref-Hayden_2013_71-0" class="reference"><a href="#cite_note-Hayden_2013-71"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-72" class="reference"><a href="#cite_note-72"><span class="cite-bracket">[</span>72<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-73" class="reference"><a href="#cite_note-73"><span class="cite-bracket">[</span>73<span class="cite-bracket">]</span></a></sup> A German team also reported in 2013 the reconstructed <a href="/wiki/Mitochondrial_DNA" title="Mitochondrial DNA">mitochondrial genome</a> of a bear, <i><a href="/wiki/Ursus_deningeri" title="Ursus deningeri">Ursus deningeri</a></i>, more than 300,000 years old, proving that authentic ancient DNA can be preserved for hundreds of thousand years outside of permafrost.<sup id="cite_ref-PNAS-2013_74-0" class="reference"><a href="#cite_note-PNAS-2013-74"><span class="cite-bracket">[</span>74<span class="cite-bracket">]</span></a></sup> The DNA sequence of even older nuclear DNA was reported in 2021 from the permafrost-preserved teeth of two Siberian <a href="/wiki/Mammoth" title="Mammoth">mammoths</a>, both over a million years old.<sup id="cite_ref-van_der_Valk_2021_6-1" class="reference"><a href="#cite_note-van_der_Valk_2021-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-NAT-20210217_75-0" class="reference"><a href="#cite_note-NAT-20210217-75"><span class="cite-bracket">[</span>75<span class="cite-bracket">]</span></a></sup> </p><p>Researchers in 2016 measured chloroplast DNA in marine sediment cores, and found diatom DNA dating back to 1.4 million years.<sup id="cite_ref-Kirkpatrick_2016_76-0" class="reference"><a href="#cite_note-Kirkpatrick_2016-76"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup> This DNA had a half-life significantly longer than previous research, of up to 15,000 years. Kirkpatrick's team also found that DNA only decayed along a half-life rate until about 100 thousand years, at which point it followed a slower, power-law decay rate.<sup id="cite_ref-Kirkpatrick_2016_76-1" class="reference"><a href="#cite_note-Kirkpatrick_2016-76"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Human_aDNA">Human aDNA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=12" title="Edit section: Human aDNA"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Map_of_human_fossils_with_an_age_of_at_least_~40,000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/95/Map_of_human_fossils_with_an_age_of_at_least_~40%2C000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp/300px-Map_of_human_fossils_with_an_age_of_at_least_~40%2C000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp.png" decoding="async" width="300" height="164" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/95/Map_of_human_fossils_with_an_age_of_at_least_~40%2C000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp/450px-Map_of_human_fossils_with_an_age_of_at_least_~40%2C000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/95/Map_of_human_fossils_with_an_age_of_at_least_~40%2C000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp/600px-Map_of_human_fossils_with_an_age_of_at_least_~40%2C000_years_that_yielded_genome-wide_data_and_location_of_the_Zlat%C3%BD_k%C5%AF%C5%88_fossil.webp.png 2x" data-file-width="2114" data-file-height="1153" /></a><figcaption>Map of human fossils with an age of at least ~40,000 years that yielded genome-wide data<sup id="cite_ref-zlaty_77-0" class="reference"><a href="#cite_note-zlaty-77"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p>Due to the considerable <a href="/wiki/Anthropology" title="Anthropology">anthropological</a>, <a href="/wiki/Archaeology" title="Archaeology">archaeological</a>, and <a href="/wiki/Public_interest" title="Public interest">public interest</a> directed toward human remains, they have received considerable attention from the DNA community. There are also more profound contamination issues, since the specimens belong to the same species as the researchers collecting and evaluating the samples. </p> <div class="mw-heading mw-heading3"><h3 id="Sources">Sources</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=13" title="Edit section: Sources"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Due to the <a href="/wiki/Comparative_anatomy" title="Comparative anatomy">morphological</a> preservation in mummies, many studies from the 1990s and 2000s used mummified tissue as a source of ancient human DNA. Examples include both naturally preserved specimens, such as the <a href="/wiki/%C3%96tzi_the_Iceman" class="mw-redirect" title="Ötzi the Iceman">Ötzi the Iceman</a> frozen in a glacier<sup id="cite_ref-Handt_1994_78-0" class="reference"><a href="#cite_note-Handt_1994-78"><span class="cite-bracket">[</span>78<span class="cite-bracket">]</span></a></sup> and bodies preserved through rapid <a href="/wiki/Desiccation" title="Desiccation">desiccation</a> at high altitude in the Andes,<sup id="cite_ref-Pääbo_1986_12-1" class="reference"><a href="#cite_note-Pääbo_1986-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Montiel_''et_al.''_2001_79-0" class="reference"><a href="#cite_note-Montiel_''et_al.''_2001-79"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup> as well as various chemically treated preserved tissue such as the mummies of ancient Egypt.<sup id="cite_ref-pmid7806242_80-0" class="reference"><a href="#cite_note-pmid7806242-80"><span class="cite-bracket">[</span>80<span class="cite-bracket">]</span></a></sup> However, mummified remains are a limited resource. The majority of human aDNA studies have focused on extracting DNA from two sources much more common in the <a href="/wiki/Archaeological_record" title="Archaeological record">archaeological record</a>: <a href="/wiki/Bone" title="Bone">bones</a> and <a href="/wiki/Tooth" title="Tooth">teeth</a>. The bone that is most often used for DNA extraction is the <a href="/wiki/Petrous_part_of_the_temporal_bone" title="Petrous part of the temporal bone">petrous</a> ear bone, since its dense structure provides good conditions for DNA preservation.<sup id="cite_ref-81" class="reference"><a href="#cite_note-81"><span class="cite-bracket">[</span>81<span class="cite-bracket">]</span></a></sup> Several other sources have also yielded DNA, including <a href="/wiki/Coprolite" title="Coprolite">paleofaeces</a>,<sup id="cite_ref-Poinar_''et_al.''_2001_82-0" class="reference"><a href="#cite_note-Poinar_''et_al.''_2001-82"><span class="cite-bracket">[</span>82<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/Hair" title="Hair">hair</a>.<sup id="cite_ref-Baker_''et_al.''_2001_83-0" class="reference"><a href="#cite_note-Baker_''et_al.''_2001-83"><span class="cite-bracket">[</span>83<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Gilbert_''et_al.''_2004_84-0" class="reference"><a href="#cite_note-Gilbert_''et_al.''_2004-84"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup> Contamination remains a major problem when working on ancient human material. </p><p>Ancient <a href="/wiki/Pathogen" title="Pathogen">pathogen</a> DNA has been successfully retrieved from samples dating to more than 5,000 years old in humans and as long as 17,000 years ago in other species. In addition to the usual sources of mummified tissue, bones and teeth, such studies have also examined a range of other tissue samples, including calcified <a href="/wiki/Pleural_cavity" title="Pleural cavity">pleura</a>,<sup id="cite_ref-Donoghue_''et_al.''_1998_85-0" class="reference"><a href="#cite_note-Donoghue_''et_al.''_1998-85"><span class="cite-bracket">[</span>85<span class="cite-bracket">]</span></a></sup> tissue embedded in <a href="/wiki/Paraffin_wax" title="Paraffin wax">paraffin</a>,<sup id="cite_ref-pmid9448313_86-0" class="reference"><a href="#cite_note-pmid9448313-86"><span class="cite-bracket">[</span>86<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid11226311_87-0" class="reference"><a href="#cite_note-pmid11226311-87"><span class="cite-bracket">[</span>87<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/Formalin" class="mw-redirect" title="Formalin">formalin</a>-fixed tissue.<sup id="cite_ref-pmid9065404_88-0" class="reference"><a href="#cite_note-pmid9065404-88"><span class="cite-bracket">[</span>88<span class="cite-bracket">]</span></a></sup> Efficient computational tools have been developed for pathogen and microorganism aDNA analyses in a small (QIIME<sup id="cite_ref-89" class="reference"><a href="#cite_note-89"><span class="cite-bracket">[</span>89<span class="cite-bracket">]</span></a></sup>) and large scale (FALCON <sup id="cite_ref-falcon_90-0" class="reference"><a href="#cite_note-falcon-90"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup>). </p> <div class="mw-heading mw-heading3"><h3 id="Results">Results</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=14" title="Edit section: Results"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Taking preventative measures in their procedure against such contamination though, a 2012 study analyzed bone samples of a <a href="/wiki/Neanderthal" title="Neanderthal">Neanderthal</a> group in the El Sidrón cave, finding new insights on potential kinship and genetic diversity from the aDNA.<sup id="cite_ref-91" class="reference"><a href="#cite_note-91"><span class="cite-bracket">[</span>91<span class="cite-bracket">]</span></a></sup> In November 2015, scientists reported finding a 110,000-year-old tooth containing DNA from the <a href="/wiki/Denisovan" title="Denisovan">Denisovan hominin</a>, an <a href="/wiki/Extinct" class="mw-redirect" title="Extinct">extinct</a> <a href="/wiki/Species" title="Species">species</a> of <a href="/wiki/Human" title="Human">human</a> in the genus <a href="/wiki/Homo" title="Homo">Homo</a>.<sup id="cite_ref-NYT-20151116_92-0" class="reference"><a href="#cite_note-NYT-20151116-92"><span class="cite-bracket">[</span>92<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-PNAS-20151111_93-0" class="reference"><a href="#cite_note-PNAS-20151111-93"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup> </p><p>The research has added new complexity to the peopling of Eurasia. A study from 2018 <sup id="cite_ref-94" class="reference"><a href="#cite_note-94"><span class="cite-bracket">[</span>94<span class="cite-bracket">]</span></a></sup> showed that a <a href="/wiki/Bronze_Age_Britain" title="Bronze Age Britain">Bronze Age</a> mass migration had greatly impacted the genetic makeup of the British Isles, bringing with it the <a href="/wiki/Bell_Beaker_culture" title="Bell Beaker culture">Bell Beaker</a> culture from mainland Europe. </p><p>It has also revealed new information about links between the ancestors of Central Asians and the indigenous peoples of the Americas. In Africa, older DNA degrades quickly due to the warmer tropical climate, although, in September 2017, ancient DNA samples, as old as 8,100 years old, have been reported.<sup id="cite_ref-NYT-20170921_95-0" class="reference"><a href="#cite_note-NYT-20170921-95"><span class="cite-bracket">[</span>95<span class="cite-bracket">]</span></a></sup> </p><p>Moreover, ancient DNA has helped researchers to estimate modern human divergence.<sup id="cite_ref-96" class="reference"><a href="#cite_note-96"><span class="cite-bracket">[</span>96<span class="cite-bracket">]</span></a></sup> By sequencing African genomes from three Stone Age hunter gatherers (2000 years old) and four Iron Age farmers (300 to 500 years old), Schlebusch and colleagues were able to push back the date of the earliest divergence between human populations to 350,000 to 260,000 years ago. </p><p>As of 2021, the oldest completely reconstructed human genomes are <a href="/wiki/Upper_Paleolithic" title="Upper Paleolithic">~45,000 years old</a>.<sup id="cite_ref-97" class="reference"><a href="#cite_note-97"><span class="cite-bracket">[</span>97<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-zlaty_77-1" class="reference"><a href="#cite_note-zlaty-77"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup> Such genetic data provides insights into the migration and genetic history – e.g. <a href="/wiki/Genetic_history_of_Europe" title="Genetic history of Europe">of Europe</a> – including about <a href="/wiki/Interbreeding_between_archaic_and_modern_humans" title="Interbreeding between archaic and modern humans">interbreeding between archaic and modern humans</a> like a common admixture between initial European modern humans and Neanderthals.<sup id="cite_ref-98" class="reference"><a href="#cite_note-98"><span class="cite-bracket">[</span>98<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-zlaty_77-2" class="reference"><a href="#cite_note-zlaty-77"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-99" class="reference"><a href="#cite_note-99"><span class="cite-bracket">[</span>99<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Researchers_specializing_in_ancient_DNA">Researchers specializing in ancient DNA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=15" title="Edit section: Researchers specializing in ancient DNA"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/Alan_J._Cooper" class="mw-redirect" title="Alan J. Cooper">Alan Cooper</a></li> <li><a href="/wiki/Kirsten_Bos" title="Kirsten Bos">Kirsten Bos</a></li> <li><a href="/wiki/Joachim_Burger" title="Joachim Burger">Joachim Burger</a></li> <li><a href="/wiki/Marcus_Thomas_Pius_Gilbert" title="Marcus Thomas Pius Gilbert">M. Thomas P. Gilbert</a></li> <li><a href="/wiki/Johannes_Krause" title="Johannes Krause">Johannes Krause</a></li> <li><a href="/wiki/Svante_P%C3%A4%C3%A4bo" title="Svante Pääbo">Svante Pääbo</a></li> <li><a href="/wiki/Hendrik_Poinar" title="Hendrik Poinar">Hendrik Poinar</a></li> <li><a href="/wiki/David_Reich_(geneticist)" title="David Reich (geneticist)">David Reich</a></li> <li><a href="/wiki/Beth_Shapiro" title="Beth Shapiro">Beth Shapiro</a></li> <li><a href="/wiki/Mark_G._Thomas" title="Mark G. Thomas">Mark G. Thomas</a></li> <li><a href="/wiki/Eske_Willerslev" title="Eske Willerslev">Eske Willerslev</a></li> <li><a href="/wiki/Carles_Lalueza-Fox" title="Carles Lalueza-Fox">Carles Lalueza-Fox</a></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=16" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/Ancient_pathogen_genomics" title="Ancient pathogen genomics">Ancient pathogen genomics</a></li> <li><a href="/wiki/Ancient_protein" title="Ancient protein">Ancient protein</a></li> <li><a href="/wiki/Archaeogenetics" title="Archaeogenetics">Archaeogenetics</a></li> <li><a href="/wiki/Environmental_DNA" title="Environmental DNA">Environmental DNA</a> (eDNA)</li> <li><a href="/wiki/List_of_DNA_tested_mummies" class="mw-redirect" title="List of DNA tested mummies">List of DNA tested mummies</a></li> <li><a href="/wiki/List_of_haplogroups_of_historic_people" title="List of haplogroups of historic people">List of haplogroups of historic people</a></li> <li><a href="/wiki/Molecular_paleontology" title="Molecular paleontology">Molecular paleontology</a></li> <li><a href="/wiki/Paleogenetics" title="Paleogenetics">Paleogenetics</a></li> <li><a href="/wiki/Sedimentary_ancient_DNA" class="mw-redirect" title="Sedimentary ancient DNA">Sedimentary ancient DNA</a> (<a href="/wiki/SedaDNA" class="mw-redirect" title="SedaDNA">sedaDNA</a>)</li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=17" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-Pevsner_2015-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-Pevsner_2015_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFPevsner2015" class="citation book cs1">Pevsner J (2015). <i>Bioinformatics and Functional Genomics</i> (3rd ed.). 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title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Initial+Upper+Palaeolithic+humans+in+Europe+had+recent+Neanderthal+ancestry&rft.volume=592&rft.issue=7853&rft.pages=253-257&rft.date=2021-04&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC8026394%23id-name%3DPMC&rft_id=info%3Apmid%2F33828320&rft_id=info%3Adoi%2F10.1038%2Fs41586-021-03335-3&rft_id=info%3Abibcode%2F2021Natur.592..253H&rft.aulast=Hajdinjak&rft.aufirst=M&rft.au=Mafessoni%2C+F&rft.au=Skov%2C+L&rft.au=Vernot%2C+B&rft.au=H%C3%BCbner%2C+A&rft.au=Fu%2C+Q&rft.au=Essel%2C+E&rft.au=Nagel%2C+S&rft.au=Nickel%2C+B&rft.au=Richter%2C+J&rft.au=Moldovan%2C+OT&rft.au=Constantin%2C+S&rft.au=Endarova%2C+E&rft.au=Zahariev%2C+N&rft.au=Spasov%2C+R&rft.au=Welker%2C+F&rft.au=Smith%2C+GM&rft.au=Sinet-Mathiot%2C+V&rft.au=Paskulin%2C+L&rft.au=Fewlass%2C+H&rft.au=Talamo%2C+S&rft.au=Rezek%2C+Z&rft.au=Sirakova%2C+S&rft.au=Sirakov%2C+N&rft.au=McPherron%2C+SP&rft.au=Tsanova%2C+T&rft.au=Hublin%2C+JJ&rft.au=Peter%2C+BM&rft.au=Meyer%2C+M&rft.au=Skoglund%2C+P&rft.au=Kelso%2C+J&rft.au=P%C3%A4%C3%A4bo%2C+S&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC8026394&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span> <span typeof="mw:File"><a href="/wiki/File:CC_BY_icon.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e1/CC_BY_icon.svg/50px-CC_BY_icon.svg.png" decoding="async" width="50" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e1/CC_BY_icon.svg/75px-CC_BY_icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e1/CC_BY_icon.svg/100px-CC_BY_icon.svg.png 2x" data-file-width="88" data-file-height="31" /></a></span> Available under <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=18" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFReich2018" class="citation book cs1"><a href="/wiki/David_Reich_(geneticist)" title="David Reich (geneticist)">Reich D</a> (2018). <i>Who We Are And How We Got Here – Ancient DNA and the New Science of the Human Past</i>. <a href="/wiki/Pantheon_Books" title="Pantheon Books">Pantheon Books</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1101870327" title="Special:BookSources/978-1101870327"><bdi>978-1101870327</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Who+We+Are+And+How+We+Got+Here+%E2%80%93+Ancient+DNA+and+the+New+Science+of+the+Human+Past&rft.pub=Pantheon+Books&rft.date=2018&rft.isbn=978-1101870327&rft.aulast=Reich&rft.aufirst=D&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDiamond2018" class="citation news cs1"><a href="/wiki/Jared_Diamond" title="Jared Diamond">Diamond J</a> (April 20, 2018). <a rel="nofollow" class="external text" href="https://www.nytimes.com/2018/04/20/books/review/david-reich-who-we-are-how-we-got-here.html">"A Brand-New Version of Our Origin Story"</a>. <i><a href="/wiki/The_New_York_Times" title="The New York Times">The New York Times</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">April 23,</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+New+York+Times&rft.atitle=A+Brand-New+Version+of+Our+Origin+Story&rft.date=2018-04-20&rft.aulast=Diamond&rft.aufirst=J&rft_id=https%3A%2F%2Fwww.nytimes.com%2F2018%2F04%2F20%2Fbooks%2Freview%2Fdavid-reich-who-we-are-how-we-got-here.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFOrlando2014" class="citation journal cs1">Orlando L (June 2014). "A 400,000-year-old mitochondrial genome questions phylogenetic relationships amongst archaic hominins: using the latest advances in ancient genomics, the mitochondrial genome sequence of a 400,000-year-old hominin has been deciphered". <i>BioEssays</i>. <b>36</b> (6): 598–605. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1002%2Fbies.201400018">10.1002/bies.201400018</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/24706482">24706482</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:35786511">35786511</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=BioEssays&rft.atitle=A+400%2C000-year-old+mitochondrial+genome+questions+phylogenetic+relationships+amongst+archaic+hominins%3A+using+the+latest+advances+in+ancient+genomics%2C+the+mitochondrial+genome+sequence+of+a+400%2C000-year-old+hominin+has+been+deciphered&rft.volume=36&rft.issue=6&rft.pages=598-605&rft.date=2014-06&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A35786511%23id-name%3DS2CID&rft_id=info%3Apmid%2F24706482&rft_id=info%3Adoi%2F10.1002%2Fbies.201400018&rft.aulast=Orlando&rft.aufirst=L&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJones2022" class="citation book cs1">Jones E (2022). <i>Ancient DNA: The Making of a Celebrity Science</i>. <a href="/wiki/Yale_University_Press" title="Yale University Press">Yale University Press</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-300-24012-2" title="Special:BookSources/978-0-300-24012-2"><bdi>978-0-300-24012-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Ancient+DNA%3A+The+Making+of+a+Celebrity+Science&rft.pub=Yale+University+Press&rft.date=2022&rft.isbn=978-0-300-24012-2&rft.aulast=Jones&rft.aufirst=E&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ancient_DNA&action=edit&section=19" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20161003201826/http://www.ancestraljourneys.org/palaeolithicdna.shtml">"Ancient DNA"</a>. <i>Ancestral journeys</i>. Archived from <a rel="nofollow" class="external text" href="http://www.ancestraljourneys.org/palaeolithicdna.shtml">the original</a> on October 3, 2016.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Ancestral+journeys&rft.atitle=Ancient+DNA&rft_id=http%3A%2F%2Fwww.ancestraljourneys.org%2Fpalaeolithicdna.shtml&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span></li> <li><a rel="nofollow" class="external text" href="https://isogg.org/wiki/Y-DNA_famous_people">Famous mtDNA</a>, isogg wiki</li> <li><a rel="nofollow" class="external text" href="https://isogg.org/wiki/Ancient_DNA">Ancient mtDNA</a>, isogg wiki</li> <li><a rel="nofollow" class="external text" href="https://www.y-str.org/p/ancient-dna.html">Ancient DNA</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20200306201227/http://www.y-str.org/p/ancient-dna.html">Archived</a> 2020-03-06 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>, y-str.org</li> <li><a rel="nofollow" class="external text" href="https://www.friendsofpast.org/earliest-americans/map.html">Evidence of the Past: A Map and Status of Ancient Remains</a> – samples from USA no sequence data here.</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20091214080708/http://www.egyptologyonline.com/using_dna.htm">"Unravelling the mummy mystery – using DNA"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.egyptologyonline.com/using_dna.htm">the original</a> on December 14, 2009</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Unravelling+the+mummy+mystery+%E2%80%93+using+DNA&rft_id=http%3A%2F%2Fwww.egyptologyonline.com%2Fusing_dna.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAncient+DNA" class="Z3988"></span> – no data on YDNA only mtDNA</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output 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href="/wiki/Heinrich_Schliemann" title="Heinrich Schliemann">Heinrich Schliemann</a></li> <li><a href="/wiki/Arthur_Evans" title="Arthur Evans">Arthur Evans</a></li> <li><a href="/wiki/John_Lloyd_Stephens" title="John Lloyd Stephens">John Lloyd Stephens</a></li> <li><a href="/wiki/William_Henry_Holmes" title="William Henry Holmes">William Henry Holmes</a></li> <li><a href="/wiki/Augustus_Pitt_Rivers" title="Augustus Pitt Rivers">Augustus Pitt Rivers</a></li> <li><a href="/wiki/Flinders_Petrie" title="Flinders Petrie">Flinders Petrie</a></li> <li><a href="/wiki/Mortimer_Wheeler" title="Mortimer Wheeler">Mortimer Wheeler</a></li> <li><a href="/wiki/Dorothy_Garrod" title="Dorothy Garrod">Dorothy Garrod</a></li> <li><a href="/wiki/Max_Uhle" title="Max Uhle">Max Uhle</a></li> <li><a href="/wiki/Alfred_V._Kidder" title="Alfred V. Kidder">Alfred V. Kidder</a></li> <li><a href="/wiki/George_Bass_(archaeologist)" title="George Bass (archaeologist)">George Bass</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Method and theory</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Archaeological_theory" title="Archaeological theory">Archaeological theory</a></li> <li><a href="/wiki/Philosophy_of_archaeology" title="Philosophy of archaeology">Philosophy of archaeology</a></li> <li><a href="/wiki/Archaeological_diving" title="Archaeological diving">Archaeological diving</a></li> <li><a href="/wiki/Archaeological_ethics" title="Archaeological ethics">Archaeological ethics</a></li> <li><a href="/wiki/Conservation_and_restoration_of_archaeological_sites" title="Conservation and restoration of archaeological sites">Conservation and restoration of archaeological sites</a></li> <li><a href="/wiki/Survey_(archaeology)" title="Survey (archaeology)">Survey</a> <ul><li><a href="/wiki/Geophysical_survey_(archaeology)" title="Geophysical survey (archaeology)">geophysical survey</a></li> <li><a href="/wiki/Electrical_resistance_survey" title="Electrical resistance survey">electrical resistance survey</a></li> <li><a href="/wiki/Sondage" title="Sondage">Sondage</a></li></ul></li> <li><a href="/wiki/Burnt_layer" title="Burnt layer">Burnt layer</a></li> <li><a href="/wiki/Archaeological_excavation" title="Archaeological excavation">Excavation</a></li> <li><a href="/wiki/Lithic_analysis" title="Lithic analysis">Lithic analysis</a></li> <li><a href="/wiki/Post-excavation_analysis" title="Post-excavation analysis">Post-excavation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Subfields_of_archaeology" title="Subfields of archaeology">Sub-disciplines</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Chronological</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Prehistoric_archaeology" title="Prehistoric archaeology">Prehistoric</a></li> <li><a href="/wiki/Protohistory" title="Protohistory">Protohistoric</a></li> <li><a href="/wiki/Biblical_archaeology" title="Biblical archaeology">Biblical</a></li> <li><a href="/wiki/Classical_archaeology" title="Classical archaeology">Classical</a></li> <li><a href="/wiki/Medieval_archaeology" title="Medieval archaeology">Medieval</a></li> <li><a href="/wiki/Post-medieval_archaeology" title="Post-medieval archaeology">Post-Medieval</a></li> <li><a href="/wiki/Historical_archaeology" title="Historical archaeology">Historical</a></li> <li><a href="/wiki/Contemporary_archaeology" title="Contemporary archaeology">Contemporary</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Geographic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/African_archaeology" title="African archaeology">African</a></li> <li><a href="/wiki/Archaeology_of_the_Americas" title="Archaeology of the Americas">American</a></li> <li><a href="/wiki/Category:Archaeology_in_Asia" title="Category:Archaeology in Asia">Asian</a></li> <li><a href="/wiki/Australian_archaeology" class="mw-redirect" title="Australian archaeology">Australian</a></li> <li><a href="/wiki/Archaeology_in_Oceania" title="Archaeology in Oceania">Oceanian</a></li> <li><a href="/wiki/Egyptology" title="Egyptology">Egyptian</a></li> <li><a href="/wiki/Assyriology" title="Assyriology">Mesopotamian</a></li> <li><a href="/wiki/Near_Eastern_archaeology" title="Near Eastern archaeology">Near Eastern</a></li> <li><a href="/wiki/Nubiology" title="Nubiology">Nubian</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Methodological</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aerial_archaeology" title="Aerial archaeology">Aerial</a></li> <li><a href="/wiki/Bioarchaeology" title="Bioarchaeology">Bioarchaeology</a> <ul><li><a href="/wiki/Archaeogenetics" title="Archaeogenetics">Archaeogenetics</a></li> <li><a href="/wiki/Medieval_bioarchaeology" title="Medieval bioarchaeology">Medieval</a></li> <li><a href="/wiki/Near_Eastern_bioarchaeology" title="Near Eastern bioarchaeology">Near Eastern</a></li> <li><a href="/wiki/Osteology" title="Osteology">Osteology</a></li> <li><a href="/wiki/Paleopathology" title="Paleopathology">Paleopathology</a></li></ul></li> <li><a href="/wiki/Calceology" title="Calceology">Calceology</a></li> <li><a href="/wiki/Digital_archaeology" title="Digital archaeology">Digital</a> <ul><li><a href="/wiki/Archaeogaming" title="Archaeogaming">Archaeogaming</a></li> <li><a href="/wiki/Computational_archaeology" title="Computational archaeology">Computational</a></li> <li><a href="/wiki/Virtual_archaeology" title="Virtual archaeology">Virtual</a></li></ul></li> <li><a href="/wiki/Environmental_archaeology" title="Environmental archaeology">Environmental</a> <ul><li><a href="/wiki/Geoarchaeology" title="Geoarchaeology">Geoarchaeology</a></li> <li><a href="/wiki/Paleoethnobotany" title="Paleoethnobotany">Paleoethnobotany</a></li> <li><a href="/wiki/Zooarchaeology" title="Zooarchaeology">Zooarchaeology</a></li></ul></li> <li><a href="/wiki/Experimental_archaeology" title="Experimental archaeology">Experimental</a></li> <li><a href="/wiki/Underwater_archaeology" title="Underwater archaeology">Underwater</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Thematic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Archaeoastronomy" title="Archaeoastronomy">Archaeoastronomy</a></li> <li><a href="/wiki/Archaeological_science" title="Archaeological science">Archaeometry</a></li> <li><a href="/wiki/Battlefield_archaeology" title="Battlefield archaeology">Battlefield</a></li> <li><a href="/wiki/Conflict_archaeology" title="Conflict archaeology">Conflict</a></li> <li><a href="/wiki/Feminist_archaeology" title="Feminist archaeology">Feminist</a></li> <li><a href="/wiki/Funerary_archaeology" title="Funerary archaeology">Funerary</a></li> <li><a href="/wiki/Gender_archaeology" title="Gender archaeology">Gender</a></li> <li><a href="/wiki/Indigenous_archaeology" title="Indigenous archaeology">Indigenous</a></li> <li><a href="/wiki/Industrial_archaeology" title="Industrial archaeology">Industrial</a></li> <li><a href="/wiki/Landscape_archaeology" title="Landscape archaeology">Landscape</a></li> <li><a href="/wiki/Maritime_archaeology" title="Maritime archaeology">Maritime</a></li> <li><a href="/wiki/Mortuary_archaeology" title="Mortuary archaeology">Mortuary</a></li> <li><a href="/wiki/Music_archaeology" title="Music archaeology">Music</a></li> <li><a href="/wiki/Nazi_archaeology" title="Nazi archaeology">Nazi</a></li> <li><a href="/wiki/Phenomenology_(archaeology)" title="Phenomenology (archaeology)">Phenomenology</a></li> <li><a href="/wiki/Pseudoarchaeology" title="Pseudoarchaeology">Pseudoarchaeology</a></li> <li><a href="/wiki/Queer_archaeology" title="Queer archaeology">Queer</a></li> <li><a href="/wiki/Transgender_archaeology" title="Transgender archaeology">Transgender</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lists</th><td class="navbox-list-with-group navbox-list navbox-odd" 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articles">Index</a></li> <li><a href="/wiki/Glossary_of_genetics" class="mw-redirect" title="Glossary of genetics">Glossary</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Key components</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chromosome" title="Chromosome">Chromosome</a></li> <li><a href="/wiki/DNA" title="DNA">DNA</a></li> <li><a href="/wiki/RNA" title="RNA">RNA</a></li> <li><a href="/wiki/Genome" title="Genome">Genome</a></li> <li><a href="/wiki/Heredity" title="Heredity">Heredity</a></li> <li><a href="/wiki/Nucleotide" title="Nucleotide">Nucleotide</a></li> <li><a href="/wiki/Mutation" title="Mutation">Mutation</a></li> <li><a href="/wiki/Genetic_variation" title="Genetic variation">Genetic variation</a></li> <li><a href="/wiki/Allele" title="Allele">Allele</a></li> <li><a href="/wiki/Amino_acid" title="Amino acid">Amino acid</a></li></ul> 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[\"CITEREFCanoPoinarRoubikPoinar_Jr1992b\"] = 1,\n [\"CITEREFCooperMourer-ChauviréChambersvon_Haeseler1992\"] = 1,\n [\"CITEREFDabneyKnappGlockeGansauge2013\"] = 1,\n [\"CITEREFDabneyMeyerPääbo2013\"] = 1,\n [\"CITEREFDeSalleGrimaldi1994\"] = 1,\n [\"CITEREFDiamond2018\"] = 1,\n [\"CITEREFDonoghueSpigelmanZiasGernaey-Child1998\"] = 1,\n [\"CITEREFDumolin-LapèguePemongeGiellyTaberlet1999\"] = 1,\n [\"CITEREFErika_Check_Hayden2013\"] = 1,\n [\"CITEREFFishShepherdMcGenityGrant2002\"] = 1,\n [\"CITEREFGansaugeMeyer2014\"] = 1,\n [\"CITEREFGilbertWilsonBunceHansen2004\"] = 1,\n [\"CITEREFGolenberg1991\"] = 1,\n [\"CITEREFGolenbergGiannasiCleggSmiley1990\"] = 1,\n [\"CITEREFGoloubinoffPääboWilson1993\"] = 1,\n [\"CITEREFGrassHeckelPudduPaunescu2015\"] = 1,\n [\"CITEREFHagelbergSykesHedges1989\"] = 1,\n [\"CITEREFHagelbergThomasCookSher1994\"] = 1,\n [\"CITEREFHajdinjakMafessoniSkovVernot2021\"] = 1,\n [\"CITEREFHandtRichardsTrommsdorffKilger1994\"] = 1,\n [\"CITEREFHansenMitchellWiufPaniker2006\"] = 1,\n [\"CITEREFHebsgaardPhillipsWillerslev2005\"] = 1,\n [\"CITEREFHiguchiBowmanFreibergerRyder1984\"] = 1,\n [\"CITEREFHofreiterPoinarSpauldingBauer2000\"] = 1,\n [\"CITEREFHänniLaudetCollStehelin1994\"] = 1,\n [\"CITEREFHänniLaudetStehelinTaberlet1994\"] = 1,\n [\"CITEREFJacksonHugh-JonesAdairGreen1998\"] = 1,\n [\"CITEREFJohnsonHebsgaardChristensenMastepanov2007\"] = 1,\n [\"CITEREFJohnsonSlatkin2008\"] = 1,\n [\"CITEREFJones2016\"] = 1,\n [\"CITEREFJones2022\"] = 1,\n [\"CITEREFJunqueiraLessingerAzeredo-Espin2002\"] = 1,\n [\"CITEREFJónssonGinolhacSchubertJohnson2013\"] = 1,\n [\"CITEREFKirkpatrickWalshD\u0026#039;Hondt2016\"] = 1,\n [\"CITEREFKjærWinther_PedersenDe_SanctisDe_Cahsan2022\"] = 1,\n [\"CITEREFKrauseBriggsKircherMaricic2010\"] = 1,\n [\"CITEREFKuchRohlandBetancourtLatorre2002\"] = 1,\n [\"CITEREFLalueza-FoxRosasde_la_Rasilla2012\"] = 1,\n [\"CITEREFLee2017\"] = 1,\n [\"CITEREFLiAn_C-CZhu_Y-X1995\"] = 1,\n [\"CITEREFLindahl1993\"] = 1,\n [\"CITEREFMartin-RoyThyrringMataBangsgaard2024\"] = 1,\n [\"CITEREFMatsonOttesenLeadbetter2007\"] = 1,\n [\"CITEREFMichelsenPedersenFernandez-GuerraZhao2022\"] = 1,\n [\"CITEREFMontielMalgosaFrancalacci2001\"] = 1,\n [\"CITEREFMullisFaloona1987\"] = 1,\n [\"CITEREFNicholls2005\"] = 1,\n [\"CITEREFOlaldeBraceAllentoftArmit2018\"] = 1,\n [\"CITEREFOrlando2014\"] = 1,\n [\"CITEREFOrlandoGinolhacZhangFroese2013\"] = 1,\n [\"CITEREFPevsner2015\"] = 1,\n [\"CITEREFPinhasiFernandesSirakNovak2015\"] = 1,\n [\"CITEREFPochonBergfeldtKırdökVicente2023\"] = 1,\n [\"CITEREFPoinarCanoPoinar1993\"] = 1,\n [\"CITEREFPoinarHofreiterSpauldingMartin1998\"] = 1,\n [\"CITEREFPoinarKuchSobolikBarnes2001\"] = 1,\n [\"CITEREFPratasHosseiniGriloPinho2018\"] = 1,\n [\"CITEREFPratasPinhoSilvaRodrigues2018\"] = 1,\n [\"CITEREFPruvostSchwarzCorreiaChamplot2007\"] = 1,\n [\"CITEREFPrüferPosthYuStoessel2021\"] = 1,\n [\"CITEREFPääbo1985a\"] = 1,\n [\"CITEREFPääbo1985b\"] = 1,\n [\"CITEREFPääbo1986\"] = 1,\n [\"CITEREFPääboPoinarSerreJaenicke-Despres2004\"] = 1,\n [\"CITEREFRaxworthySmith2021\"] = 1,\n [\"CITEREFReich2018\"] = 1,\n [\"CITEREFSaikiGelfandStoffelScharf1988\"] = 1,\n [\"CITEREFSawyerRenaudViolaHublin2015\"] = 1,\n [\"CITEREFSchlebuschMalmströmGüntherSjödin2017\"] = 1,\n [\"CITEREFSkoglundNorthoffShunkovDerevianko2014\"] = 1,\n [\"CITEREFSlatkinRacimo2016\"] = 1,\n [\"CITEREFTaubenbergerReidKrafftBijwaard1997\"] = 1,\n [\"CITEREFThomasSchaffnerWilsonPääbo1989\"] = 1,\n [\"CITEREFVreelandRosenzweigPowers2000\"] = 1,\n [\"CITEREFWalesCarøeSandoval-VelascoGamba2015\"] = 1,\n [\"CITEREFWillerslevCooper2005\"] = 1,\n [\"CITEREFWillerslevHansenBinladenBrand2003\"] = 1,\n [\"CITEREFWillerslevHansenRønnBrand2004\"] = 1,\n [\"CITEREFWoodwardWeyandBunnell1994\"] = 1,\n [\"CITEREFZimmer2015\"] = 1,\n [\"CITEREFZimmer2017\"] = 1,\n [\"CITEREFZimmer2022\"] = 1,\n [\"CITEREFZischlerHössHandtvon_Haeseler1995\"] = 1,\n [\"CITEREFvan_der_ValkPečnerováDíez-Del-MolinoBergström2021\"] = 1,\n}\ntemplate_list = table#1 {\n [\"Archaeology\"] = 1,\n [\"Cite book\"] = 5,\n [\"Cite journal\"] = 86,\n [\"Cite news\"] = 7,\n [\"Cite thesis\"] = 1,\n [\"Cite web\"] = 4,\n [\"Cs1 config\"] = 1,\n [\"Div col\"] = 2,\n [\"Div col end\"] = 2,\n [\"Genetics\"] = 1,\n [\"Portal bar\"] = 1,\n [\"Refbegin\"] = 1,\n [\"Refend\"] = 1,\n [\"Reflist\"] = 1,\n [\"Sfn\"] = 1,\n [\"Short description\"] = 1,\n [\"Webarchive\"] = 1,\n}\narticle_whitelist = table#1 {\n}\ntable#1 {\n}\n"},"cachereport":{"origin":"mw-web.codfw.main-6b7f745dd4-lw7xg","timestamp":"20241125135313","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Ancient DNA","url":"https:\/\/en.wikipedia.org\/wiki\/Ancient_DNA","sameAs":"http:\/\/www.wikidata.org\/entity\/Q290447","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q290447","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2005-11-30T21:22:55Z","dateModified":"2024-11-02T06:18:14Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/e\/e9\/Ancient_DNA.png","headline":"DNA isolated from ancient specimens"}</script> </body> </html>