Evolutionary history of the greater white-toothed shrew (Crocidura russula) inferred from analysis of mtDNA, Y, and X chromosome markers.

Détails

ID Serval
serval:BIB_C13726E4B959
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Evolutionary history of the greater white-toothed shrew (Crocidura russula) inferred from analysis of mtDNA, Y, and X chromosome markers.
Périodique
Molecular Phylogenetics and Evolution
Auteur⸱e⸱s
Brändli L., Lawson Handley L.J., Vogel P., Perrin N.
ISSN
1055-7903[print], 1055-7903[linking]
Statut éditorial
Publié
Date de publication
2005
Peer-reviewed
Oui
Volume
37
Numéro
3
Pages
832-844
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
We investigate the evolutionary history of the greater white-toothed shrew across its distribution in northern Africa and mainland Europe using sex-specific (mtDNA and Y chromosome) and biparental (X chromosome) markers. All three loci confirm a large divergence between eastern (Tunisia and Sardinia) and western (Morocco and mainland Europe) lineages, and application of a molecular clock to mtDNA divergence estimates indicates a more ancient separation (2.25 M yr ago) than described by some previous studies, supporting claims for taxonomic revision. Moroccan ancestry for the mainland European population is inconclusive from phylogenetic trees, but is supported by greater nucleotide diversity and a more ancient population expansion in Morocco than in Europe. Signatures of rapid population expansion in mtDNA, combined with low X and Y chromosome diversity, suggest a single colonization of mainland Europe by a small number of Moroccan shrews >38 K yr ago. This study illustrates that multilocus genetic analyses can facilitate the interpretation of species' evolutionary history but that phylogeographic inference using X and Y chromosomes is restricted by low levels of observed polymorphism.
Mots-clé
Africa, Northern, Animals, Base Sequence, Bayes Theorem, Cluster Analysis, DNA Primers, DNA, Mitochondrial/genetics, Demography, Europe, Evolution, Molecular, Genetic Variation, Geography, Models, Genetic, Molecular Sequence Data, Phylogeny, Population Dynamics, Sequence Analysis, DNA, Shrews/genetics, X Chromosome/genetics, Y Chromosome/genetics
Pubmed
Web of science
Création de la notice
24/01/2008 17:32
Dernière modification de la notice
20/08/2019 15:35
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