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Smelling Our Way through Names: Understanding the Potential of Floral Volatiles as Taxonomic Traits in the Fragrant Ginger Genus Hedychium
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chemical metabolites, a majority of them being volatile organic compounds (VOCs). These VOCs are heavily involved in their biotic and abiotic interactions. Since chemical composition could be under the same selection processes as other morphological characters, we test if VOCs can be used to taxonomically distinguish species in the well-studied, fragrant ginger genus -Hedychium (Zingiberaceae). We propose that variations in the volatile profiles are suggestive of adaptation to divergent environments, and their presence could be explained by either phylogenetic conservatism or ecological factors. In this study, we investigate the volatile chemistry within Hedychium, which is endemic to Asian palaeotropics. We used an unsupervised clustering approach which clearly distinguished most taxa, and we used ancestral state reconstruction to estimate phylogenetic signals and chemical trait evolution in the genus. We propose that taxonomically, the chemical composition could aid in species identification, especially in species complexes where taxa are not morphologically distinguishable, and extensive, targeted chemical libraries will help in this effort. <iframe src="https://publications.waset.org/abstracts/161617.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemotaxonomy" title="chemotaxonomy">chemotaxonomy</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20headspace%20sampling" title=" dynamic headspace sampling"> dynamic headspace sampling</a>, <a href="https://publications.waset.org/abstracts/search?q=floral%20fragrance" title=" floral fragrance"> floral fragrance</a>, <a href="https://publications.waset.org/abstracts/search?q=floral%20volatile%20evolution" title=" floral volatile evolution"> floral volatile evolution</a>, <a href="https://publications.waset.org/abstracts/search?q=gingers" title=" gingers"> gingers</a>, <a href="https://publications.waset.org/abstracts/search?q=Hedychium" title=" Hedychium"> Hedychium</a> </p> <a href="https://publications.waset.org/abstracts/161617/smelling-our-way-through-names-understanding-the-potential-of-floral-volatiles-as-taxonomic-traits-in-the-fragrant-ginger-genus-hedychium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161617.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">95</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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