A new perspective on the evolutionary history of western European Sorex araneus group revealed by paternal and maternal molecular markers.

Détails

ID Serval
serval:BIB_C790AE584B7E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
A new perspective on the evolutionary history of western European Sorex araneus group revealed by paternal and maternal molecular markers.
Périodique
Molecular Phylogenetics and Evolution
Auteur(s)
Yannic G., Basset P., Hausser J.
ISSN
1055-7903 (Print)
ISSN-L
1055-7903
Statut éditorial
Publié
Date de publication
2008
Peer-reviewed
Oui
Volume
47
Numéro
1
Pages
237-250
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
The species of the common shrew (Sorex araneus) group are morphologically very similar, but have undergone a spectacular chromosomal evolution. We investigate here the evolutionary history of the Sorex araneus group distributed in western Europe. In particular, we clarify the position of a difficult species, S. granarius, using sex-specific (mtDNA and Y-chromosome) markers. The karyotype of S. granarius is generally considered similar to the common ancestor of the restricted group considered here. The mtDNA data (1.4 kb) confirms the close relationship between S. granarius and S. araneus sensu stricto (hereafter S. araneus s.s.), but the Y-chromosome (3.4 kb) produces a quite different picture: S. granarius is closely related to another species, S. coronatus. Comparison of mtDNA and Y-chromosome phylogenies suggests that the genetic and chromosomal evolution in this group are disconnected processes. The evolutionary history of the south-western European populations of the S. araneus group can only be understood considering secondary contacts between taxa after their divergence, implying genetic exchanges by means of hybridization and/or introgression.
Mots-clé
Animals, Base Sequence, DNA/isolation & purification, DNA Primers, DNA, Mitochondrial/genetics, Evolution, Molecular, Female, Genomic Imprinting, Male, Phylogeny, Polymorphism, Genetic, Shrews/genetics
Pubmed
Web of science
Création de la notice
29/01/2009 22:13
Dernière modification de la notice
20/08/2019 15:42
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