Contrasting diffusion of Quaternary gene pools across Europe: the case of the arctic-alpine Gentiana nivalis L. (Gentianaceae).

Détails

ID Serval
serval:BIB_C697435EF290
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Contrasting diffusion of Quaternary gene pools across Europe: the case of the arctic-alpine Gentiana nivalis L. (Gentianaceae).
Périodique
Flora
Auteur(s)
Alvarez N., Manel S., Schmitt T.
ISSN
0367-2530
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
207
Numéro
6
Pages
408-413
Langue
anglais
Résumé
The fate of European arctic-alpine species during Pleistocene climatic oscillations still remains debated. Did these cold-adapted species invade much of the continental steppe or did they remain restricted to warmer slopes of inner mountain massifs? To examine this question, we investigated the phylogeography of Gentiana nivalis, a typical European arctic-alpine plant species. Genome fingerprinting analyses revealed that four genetic pools are actually unevenly distributed across the continent. One cluster covers almost all mountain massifs as well as northern areas, and thus coincides with a scenario of past distribution covering a large part of the European glacial steppe. In contrast, the three other lineages are strongly restricted spatially to western, central, and eastern Alps, respectively, thus arguing towards a scenario of in situ glacial survival. The coexistence of lineages with such contrasting demographic histories in Europe challenges our classical view of refugia and corroborates several hypotheses of biogeographers from the twentieth century.
Mots-clé
AFLP, Glacial refugia, High mountain systems, Phylogeography, Range shifts
Web of science
Création de la notice
13/02/2012 16:26
Dernière modification de la notice
03/03/2018 21:17
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