Rapid loss of self-incompatibility in experimental populations of the perennial outcrossing plant Linaria cavanillesii.

Détails

ID Serval
serval:BIB_25AAC00AACBF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Rapid loss of self-incompatibility in experimental populations of the perennial outcrossing plant Linaria cavanillesii.
Périodique
Evolution; international journal of organic evolution
Auteur(s)
Voillemot M., Encinas-Viso F., Pannell J.R.
ISSN
1558-5646 (Electronic)
ISSN-L
0014-3820
Statut éditorial
Publié
Date de publication
05/2019
Peer-reviewed
Oui
Volume
73
Numéro
5
Pages
913-926
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Transitions from self-incompatibility to self-compatibility in angiosperms may be frequently driven by selection for reproductive assurance when mates or pollinators are rare, and are often succeeded by loss of inbreeding depression by purging. Here, we use experimental evolution to investigate the spread of self-compatibility from one such population of the perennial plant Linaria cavanillesii into self-incompatible (SI) populations that still have high inbreeding depression. We introduced self-compatible (SC) individuals at different frequencies into replicate experimental populations of L. cavanillesii that varied in access to pollinators. Our experiment revealed a rapid shift to self-compatibility in all replicates, driven by both greater seed set and greater outcross siring success of SC individuals. We discuss our results in the light of computer simulations that confirm the tendency of self-compatibility to spread into SI populations under the observed conditions. Our study illustrates the ease with which self-compatibility can spread among populations, a requisite for species-wide transitions from self-incompatibility to self-compatibility.
Mots-clé
Fruit set, mating system, outcrossing rate, paternity, pollen discounting, pollinator, reproductive assurance, seed set, selection experiment, selfing rate
Pubmed
Web of science
Création de la notice
10/04/2019 17:54
Dernière modification de la notice
21/08/2019 6:34
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