The evolutionary history of the two karyotypic groups of the common shrew, Sorex araneus, in Poland

Heredity
Miroslaw RatkiewiczP Taberlet

Abstract

Genetic variability within and among two karyotypic groups and five chromosome races of the common shrew (Sorex araneus) in Poland was assayed by sequencing a 1023 bp part of the cytochrome b gene (mtDNA) from 28 individuals. Thirty-four variable positions defined 21 distinct haplotypes with a maximum sequence divergence of 0.88%. No significant differentiation in the cytochrome b gene between Western and Eastern Karyotypic groups was found. Haplotype diversity estimates within the races and groups sampled were high (h = 0.800-0.928), while nucleotide diversity estimates were low (pi = 0.0034-0.0053). The distribution of pairwise nucleotide differences fits well with expectations of a "sudden expansion" model. High haplotype diversity was accompanied by relatively high expected heterozygosity (H(E)) values in nuclear genes (calculated over 47 enzyme loci: H(E) = 0.031 - 0.049), giving no evidence for a recent bottleneck after the process of post-Pleistocene recolonization of Poland by the shrews. Thus, for S. araneus chromosome races in Poland, the data on the cytochrome b gene variability support the hypothesis assuming the Robertsonian fusions having spread into an ancestral acrocentric distribution.

References

Feb 1, 1991·Journal of Molecular Evolution·D M IrwinA C Wilson
Oct 30, 1971·Lancet·M Seabright
Jul 12, 2000·Molecular Biology and Evolution·C GissiC Saccone
Dec 1, 1995·Trends in Ecology & Evolution·J W Ballard, M Kreitman
Aug 1, 1995·Evolution; International Journal of Organic Evolution·Alan R Rogers
Dec 1, 1995·Evolution; International Journal of Organic Evolution·Michel Raymond, François Rousset

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Citations

Dec 9, 2003·Molecular Biology and Evolution·Christopher S Willett, Ronald S Burton

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