High quantitative and no molecular differentiation of a freshwater snail (Galba truncatula) between temporary and permanent water habitats.

Détails

Ressource 1Télécharger: BIB_D30B07CE22CD.P001.pdf (351.61 [Ko])
Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_D30B07CE22CD
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
High quantitative and no molecular differentiation of a freshwater snail (Galba truncatula) between temporary and permanent water habitats.
Périodique
Molecular Ecology
Auteur(s)
Chapuis E., Trouve S., Facon B., Degen L., Goudet J.
ISSN
0962-1083[print], 0962-1083[linking]
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
16
Numéro
16
Pages
3484-3496
Langue
anglais
Résumé
We investigate the variation in quantitative and molecular traits in the freshwater snail Galba truncatula, from permanent and temporary water habitats. Using a common garden experiment, we measured 20 quantitative traits and molecular variation using seven microsatellites in 17 populations belonging to these two habitats. We estimated trait means in each habitat. We also estimated the distributions of overall genetic quantitative variation (QST), and of molecular variation (FST), within and between habitats. Overall, we observed a lack of association between molecular and quantitative variance. Among habitats, we found QST>FST, an indication of selection for different optima. Individuals from temporary water habitat matured older, at a larger size and were less fecund than individuals from permanent water habitat. We discuss these findings in the light of several theories for life-history traits evolution.
Mots-clé
Animals, Ecosystem, Fresh Water, Genetic Variation, Geography, Quantitative Trait Loci, Snails/classification, Snails/genetics, Switzerland
Pubmed
Web of science
Création de la notice
24/01/2008 18:10
Dernière modification de la notice
20/08/2019 16:53
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