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<datestamp>2018-01-11</datestamp>
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<title lang=en>Evolutionary patterns of volatile terpene emissions across 202 tropical tree species</title>
<creator>Courtois, Elodie A.</creator>
<creator>Dexter, Kyle G.</creator>
<creator>Paine, Charles Eliot Timothy</creator>
<creator>Stien, Didier</creator>
<creator>Engel, Julien</creator>
<creator>Baraloto, Christopher</creator>
<creator>Chave, Jérôme</creator>
<contributor>CNRS Guyane (USR 3456) ; Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Evolution et diversité biologique (EDB) ; Université Paul Sabatier - Toulouse 3 (UPS) - Ecole Nationale Supérieure Agronomique de Toulouse - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Université de Guyane (UG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Royal Botanical Garden Edinburgh ; Royal Botanical Garden</contributor>
<contributor>School of Geosciences [Edinburgh] ; University of Edinburgh</contributor>
<contributor>Biological and environmental sciences ; University of Stirling</contributor>
<contributor>Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM) ; Université Pierre et Marie Curie - Paris 6 (UPMC) - PIERRE FABRE - Electricité de France Recherche et Développement (EDF R&D) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>International Center for Tropical Botany, Department of Biological Sciences ; University of Florida</contributor>
<description>International audience</description>
<source>ISSN: 2045-7758</source>
<source>Ecology and Evolution</source>
<publisher>Wiley Open Access</publisher>
<identifier>hal-01296640</identifier>
<identifier>http://hal.upmc.fr/hal-01296640</identifier>
<identifier>http://hal.upmc.fr/hal-01296640/document</identifier>
<identifier>http://hal.upmc.fr/hal-01296640/file/ece31810.pdf</identifier>
<source>http://hal.upmc.fr/hal-01296640</source>
<source>Ecology and Evolution, Wiley Open Access, 2015, 6 (9), pp.2854-2864 〈10.1002/ece3.1810〉</source>
<identifier>DOI : 10.1002/ece3.1810</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.1810</relation>
<language>en</language>
<subject lang=en>secondary metabolites</subject>
<subject lang=en>French Guiana</subject>
<subject lang=en>herbivory</subject>
<subject lang=en>Chemical defense</subject>
<subject lang=en>tropical forest</subject>
<subject>[SDV.EE] Life Sciences [q-bio]/Ecology, environment</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Plant responses to natural enemies include formation of secondary metabolites acting as direct or indirect defenses. Volatile terpenes represent one of the most diverse groups of secondary metabolites. We aimed to explore evolutionary patterns of volatile terpene emission. We measured the composition of damage-induced volatile terpenes from 202 Amazonian tree species, spanning the angiosperm phylogeny. Volatile terpenes were extracted with solid-phase micro extraction and desorbed in a gas chromatography–mass spectrometry for compound identification. The chemical diversity of the terpene blend showed a strong phylogenetic signal as closely related species emitted a similar number of compounds. Closely related species also tended to have compositionally similar blends, although this relationship was weak. Meanwhile, the ability to emit a given compound showed no significant phylogenetic signal for 200 of 286 compounds, indicating a high rate of diversification in terpene synthesis and/or great variability in their expression. Three lineages (Magnoliales, Laurales, and Sapindales) showed exceptionally high rates of terpene diversification. Of the 70 compounds found in >10% of their species, 69 displayed significant correlated evolution with at least one other compound. These results provide insights into the complex evolutionary history of volatile terpenes in angiosperms, while highlighting the need for further research into this important class of compounds.</description>
<rights>http://creativecommons.org/licenses/by/</rights>
<date>2015-10</date>
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