The divergence history of the perennial plant Linaria cavanillesii confirms a recent loss of self-incompatibility.

Détails

Ressource 1Télécharger: Voillemot_et_al-2018-Journal_of_Evolutionary_Biology.pdf (401.44 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_79E0C0D304EF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The divergence history of the perennial plant Linaria cavanillesii confirms a recent loss of self-incompatibility.
Périodique
Journal of evolutionary biology
Auteur(s)
Voillemot M., Rougemont Q., Roux C., Pannell J.R.
ISSN
1420-9101 (Electronic)
ISSN-L
1010-061X
Statut éditorial
Publié
Date de publication
01/2018
Peer-reviewed
Oui
Volume
31
Numéro
1
Pages
136-147
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
Many angiosperms prevent inbreeding through a self-incompatibility (SI) system, but the loss of SI has been frequent in their evolutionary history. The loss of SI may often lead to an increase in the selfing rate, with the purging of inbreeding depression and the ultimate evolution of a selfing syndrome, where plants have smaller flowers with reduced pollen and nectar production. In this study, we used approximate Bayesian computation (ABC) to estimate the timing of divergence between populations of the plant Linaria cavanillesii that differ in SI status and in which SI is associated with low inbreeding depression but not with a transition to full selfing or a selfing syndrome. Our analysis suggests that the mixed-mating self-compatible (SC) population may have begun to diverge from the SI populations around 2810 generation ago, a period perhaps too short for the evolution of a selfing syndrome. We conjecture that the SC population of L. cavanillesii is at an intermediate stage of transition between outcrossing and selfing.
Mots-clé
Biological Evolution, Linaria/classification, Linaria/genetics, Models, Genetic, Plant Breeding, Self-Incompatibility in Flowering Plants/genetics, approximate Bayesian computation simulations, mating system transition, population divergence, purging, self-compatibility, selfing syndrome
Pubmed
Web of science
Open Access
Oui
Création de la notice
18/01/2018 11:44
Dernière modification de la notice
08/05/2019 20:44
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