Mitochondrial DNA variation along an altitudinal gradient in the greater white-toothed shrew, Crocidura russula.

Détails

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Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_99723B5D9188
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Mitochondrial DNA variation along an altitudinal gradient in the greater white-toothed shrew, Crocidura russula.
Périodique
Molecular Ecology
Auteur(s)
Ehinger M., Fontanillas P., Petit E., Perrin N.
ISSN
0962-1083[print], 0962-1083[linking]
Statut éditorial
Publié
Date de publication
2002
Volume
11
Numéro
5
Pages
939-945
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
The distribution of mitochondrial control region-sequence polymorphism was investigated in 15 populations of Crocidura russula along an altitudinal gradient in western Switzerland. High-altitude populations are smaller, sparser and appear to undergo frequent bottlenecks. Accordingly, they showed a loss of rare haplotypes, but unexpectedly, were less differentiated than lowland populations. Furthermore, the major haplotypes segregated significantly with altitude. The results were inconsistent with a simple model of drift and dispersal. They suggested instead a role for historical patterns of colonization, or, alternatively, present-day selective forces acting on one of the mitochondrial genes involved in metabolic pathways.
Mots-clé
Altitude, Animals, Base Sequence, DNA, Mitochondrial/chemistry, DNA, Mitochondrial/genetics, Genetic Variation, Haplotypes, Locus Control Region/genetics, Molecular Sequence Data, Sequence Analysis, DNA, Shrews/genetics, Switzerland
Pubmed
Web of science
Open Access
Oui
Création de la notice
19/11/2007 10:41
Dernière modification de la notice
20/08/2019 15:00
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