No evidence for the radiation time lag model after whole genome duplications in Teleostei.

Détails

Ressource 1Télécharger: journal.pone.0176384.pdf (1889.08 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_6A5C276B250D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
No evidence for the radiation time lag model after whole genome duplications in Teleostei.
Périodique
PLoS One
Auteur(s)
Laurent S., Salamin N., Robinson-Rechavi M.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2017
Peer-reviewed
Oui
Volume
12
Numéro
4
Pages
e0176384
Langue
anglais
Résumé
The short and long term effects of polyploidization on the evolutionary fate of lineages is still unclear despite much interest. First recognized in land plants, it has become clear that polyploidization is widespread in eukaryotes, notably at the origin of vertebrates and teleost fishes. Many hypotheses have been proposed to link the species richness of lineages and whole genome duplications. For instance, the radiation time lag model suggests that paleopolyploidy would favour the apparition of new phenotypic traits, although the radiation of the lineage would not occur before a later dispersion event. Some results indicate that this model may be observed during land plant evolution. In this work, we test predictions of the radiation time lag model using both fossil data and molecular phylogenies in ancient and more recent teleost whole genome duplications. We fail to find any evidence of delayed increase of the species number after any of these events and conclude that paleopolyploidization still remains to be unambiguously linked to taxonomic diversity in teleosts.

Pubmed
Web of science
Création de la notice
07/02/2017 10:54
Dernière modification de la notice
03/03/2018 18:01
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