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

Détails

ID Serval
serval:BIB_8B76DD057C97
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Targeted Capture of Hundreds of Nuclear Genes Unravels Phylogenetic Relationships of the Diverse Neotropical Palm Tribe Geonomateae.
Périodique
Frontiers in plant science
Auteur(s)
Loiseau O., Olivares I., Paris M., de La Harpe M., Weigand A., Koubínová D., Rolland J., Bacon C.D., Balslev H., Borchsenius F., Cano A., Couvreur TLP, Delnatte C., Fardin F., Gayot M., Mejía F., Mota-Machado T., Perret M., Roncal J., Sanin M.J., Stauffer F., Lexer C., Kessler M., Salamin N.
ISSN
1664-462X (Print)
ISSN-L
1664-462X
Statut éditorial
Publié
Date de publication
2019
Peer-reviewed
Oui
Volume
10
Pages
864
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
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.
Mots-clé
Arecaceae, Geonoma, Neotropics, phylogenetic informativeness, phylogenomics, species complexes
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/08/2019 20:45
Dernière modification de la notice
21/08/2019 5:36
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