Evolutionary history of the greater white-toothed shrew (Crocidura russula) inferred from analysis of mtDNA, Y, and X chromosome markers
Brandli, L; Handley, Lori Jayne Lawson; Handley, LJL; Vogel, P; Perrin, N; Lawson Handley, Lori; Brändli, Laura; Handley, Lori-Jayne Lawson; Vogel, Peter; Perrin, Nicolas
Lori Jayne Lawson Handley
Lori Lawson Handley L.Lawson-Handley@hull.ac.uk
Lori-Jayne Lawson Handley
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 Myr 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 Kyr 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.
Brändli, L., Handley, L. L., Vogel, P., & Perrin, N. (2005). Evolutionary history of the greater white-toothed shrew (Crocidura russula) inferred from analysis of mtDNA, Y, and X chromosome markers. Molecular Phylogenetics and Evolution, 37(3), 832-844. https://doi.org/10.1016/j.ympev.2005.06.019
|Journal Article Type||Article|
|Acceptance Date||Jan 22, 2005|
|Online Publication Date||Aug 10, 2005|
|Journal||Molecular Phylogenetics and Evolution|
|Peer Reviewed||Peer Reviewed|
|Keywords||Sex-specific loci; Y-chromosome; X-chromosome; mtDNA; Gibraltar Strait; Colonization; Expansion; Phylogeography; Bayesian analysis|
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