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

Details

Serval ID
serval:BIB_C13726E4B959
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Evolutionary history of the greater white-toothed shrew (Crocidura russula) inferred from analysis of mtDNA, Y, and X chromosome markers.
Journal
Molecular Phylogenetics and Evolution
Author(s)
Brändli L., Lawson Handley L.J., Vogel P., Perrin N.
ISSN
1055-7903[print], 1055-7903[linking]
Publication state
Published
Issued date
2005
Peer-reviewed
Oui
Volume
37
Number
3
Pages
832-844
Language
english
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Abstract
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.
Keywords
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
Create date
24/01/2008 18:32
Last modification date
20/08/2019 16:35
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