Self-compatibility is over-represented on islands.

Détails

ID Serval
serval:BIB_2531ACE85FCF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Self-compatibility is over-represented on islands.
Périodique
New Phytologist
Auteur(s)
Grossenbacher D.L., Brandvain Y., Auld J.R., Burd M., Cheptou P.O., Conner J.K., Grant A.G., Hovick S.M., Pannell J.R., Pauw A., Petanidou T., Randle A.M., Rubio de Casas R., Vamosi J., Winn A., Igic B., Busch J.W., Kalisz S., Goldberg E.E.
ISSN
1469-8137 (Electronic)
ISSN-L
0028-646X
Statut éditorial
Publié
Date de publication
2017
Volume
215
Numéro
1
Pages
469-478
Langue
anglais
Résumé
Because establishing a new population often depends critically on finding mates, individuals capable of uniparental reproduction may have a colonization advantage. Accordingly, there should be an over-representation of colonizing species in which individuals can reproduce without a mate, particularly in isolated locales such as oceanic islands. Despite the intuitive appeal of this colonization filter hypothesis (known as Baker's law), more than six decades of analyses have yielded mixed findings. We assembled a dataset of island and mainland plant breeding systems, focusing on the presence or absence of self-incompatibility. Because this trait enforces outcrossing and is unlikely to re-evolve on short timescales if it is lost, breeding system is especially likely to reflect the colonization filter. We found significantly more self-compatible species on islands than mainlands across a sample of > 1500 species from three widely distributed flowering plant families (Asteraceae, Brassicaceae and Solanaceae). Overall, 66% of island species were self-compatible, compared with 41% of mainland species. Our results demonstrate that the presence or absence of self-incompatibility has strong explanatory power for plant geographical patterns. Island floras around the world thus reflect the role of a key reproductive trait in filtering potential colonizing species in these three plant families.

Mots-clé
Baker's law, biogeography, ecological filtering, island, mainland, self-incompatibility
Pubmed
Web of science
Open Access
Oui
Création de la notice
04/07/2017 14:38
Dernière modification de la notice
08/05/2019 15:54
Données d'usage