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Henrik Balslev

Targeted Capture of Hundreds of Nuclear Genes Unravels Phylogenetic Relationships of the Diverse Neotropical Palm Tribe Geonomateae

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  • Oriane Loiseau, Univ Lausanne, University of Lausanne, Dept Computat Biol
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  • Ingrid Oliyares, UCL, University of London, University College London, Ctr Biodivers & Environm Res, University of Zurich
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  • Margot Paris, Univ Fribourg, University of Fribourg, Dept Biol, Unit Ecol & Evolut
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  • Marylaure de La Harpe, Univ Vienna, University of Vienna, Dept Bot & Biodivers Res
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  • Anna Weigand, Univ Zurich, University of Zurich, Dept Systemat & Evolutionary Bot
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  • Darina Koubinova, Nat Hist Museum Geneva, Department of Computational Biology, University of Lausanne, Lausanne, 1011, Switzerland.
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  • Jonathan Rolland, Univ British Columbia, University of British Columbia, Dept Zool, Department of Computational Biology, University of Lausanne, Lausanne, 1011, Switzerland.
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  • Christine D. Bacon, Gothenburg Global Biodivers Ctr, University of Gothenburg
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  • Henrik Balslev
  • Finn Borchsenius
  • Angela Cano, Cambridge Univ Bot Garden
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  • Thomas L. P. Couvreur, Univ Montpellier, Universite de Montpellier, Languedoc-Roussillon Universites (ComUE), Institut de Recherche pour le Developpement (IRD), DIADE, IRD
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  • Cesar Delnatte, Natl Forestry Off
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  • Frederique Fardin, Parc Natl Guadeloupe
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  • Marc Gayot, Natl Forestry Off
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  • Fabian Mejia, Univ CES, Fac Ciencias & Biotecnol
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  • Talita Mota-Machado, Univ Fed Minas Gerais, Universidade Federal de Minas Gerais, Inst Ciencias Biol, Dept Bot, Programa Posgrad Biol Vegetal
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  • Mathieu Ferret, Univ Geneva, University of Geneva, Dept Bot & Plant Biol, Conservatory & Bot Garden City Geneva
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  • Julissa Roncal, Mem Univ, Memorial University Newfoundland, Dept Biol
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  • Maria Jose Sanin, Univ CES, Fac Ciencias & Biotecnol
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  • Fred Stauffer, Univ Geneva, University of Geneva, Dept Bot & Plant Biol, Conservatory & Bot Garden City Geneva
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  • Christian Lexer, Univ Vienna, University of Vienna, Dept Bot & Biodivers Res
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  • Michael Kessler, Univ Zurich, University of Zurich, Dept Systemat & Evolutionary Bot
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  • Nicolas Salamin, Univ Lausanne, University of Lausanne, Dept Computat Biol

The tribe Geonomateae is a widely distributed group of 103 species of Neotropical palms which contains six ecologically important understory or subcanopy genera. Although it has been the focus of many studies, our understanding of the evolutionary history of this group, and in particular of the taxonomically complex genus Geonoma, is far from complete due to a lack of molecular data. Specifically, the previous Sanger sequencing-based studies used a few informative characters and partial sampling. To overcome these limitations, we used a recently developed Arecaceae-specific target capture bait set to undertake a phylogenomic analysis of the tribe Geonomateae. We sequenced 3,988 genomic regions for 85% of the species of the tribe, including 84% of the species of the largest genus, Geonoma. Phylogenetic relationships were inferred using both concatenation and coalescent methods. Overall, our phylogenetic tree is highly supported and congruent with taxonomic delimitations although several morphological taxa were revealed to be non-monophyletic. It is the first time that such a large genomic dataset is provided for an entire tribe within the Arecaceae. Our study lays the groundwork not only for detailed macro- and micro-evolutionary studies within the group, but also sets a workflow for understanding other species complexes across the tree of life.

OriginalsprogEngelsk
Artikelnummer864
TidsskriftFrontiers in Plant Science
Vol/bind10
Antal sider16
ISSN1664-462X
DOI
StatusUdgivet - jul. 2019

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