Postglacial Population History of the Common Shrew (Sorex araneus) in Fennoscandia Molecular Studies of Recolonisation, Sex-Biased Gene Flow and the Formation of Chromosome Races
نویسنده
چکیده
apparent reduction of gene flow in a hybrid zone between the West and North European karyotypic groups of the common shrew, Sorex araneus. II Andersson A-C. Lack of mitochondrial DNA structure between chromosome races of the common shrew, Sorex araneus, in Sweden. Implications for chromosomal evolution. (Manuscript).dian phylogeography of the common shrew (Sorex araneus). Post-glacial recolonisation – combining information from chromosomal variation with mitochondrial DNA data. (Manuscript). levels of male gene flow in a hybrid zone between the North and West European karyotypic groups of the common shrew, Sorex ara-neus. Chromosomally based explanation for Haldane's rule? (Manuscript).
منابع مشابه
Synaptonemal complex analysis of interracial hybrids between the Moscow and Neroosa chromosomal races of the common shrew Sorex araneus showing regular formation of a complex meiotic configuration (ring-of-four)
Immunocytochemical and electron microscopic analysis of synaptonemal complexes (SCs) was carried out for the first time in homozygotes and complex Robertsonian heterozygotes (hybrids) of the common shrew, Sorex araneus Linnaeus, 1758, from a newly discovered hybrid zone between the Moscow and the Neroosa chromosomal races. These races differ in four monobrachial homologous metacentrics, and clo...
متن کاملBibliography of studies on hybrid zones of the common shrew chromosome races distributed in Russia
The common shrew, Sorex araneus Linnaeus, 1758, has become a model species for cytogenetic and evolutionary studies after discovery of extraordinary Robertsonian polymorphism at the within-species level. Development of differential staining techniques (Q-, R-and G-banding) made it possible to identify the chromosomal arms and their combination in racial karyotypes. Entering into contact with ea...
متن کاملSex chromosome meiotic drive in hybrid males of the common shrew (Sorex araneus).
Patterns of sex chromosome segregation in six homozygous males of the common shrew (Sorex araneus LINNAEUS, 1758) belonging to two chromosomal races, as well as in 16 interracial hybrids were studied. Based on their karyotypes the hybrids can be subdivided into two groups: (a) complex heterozygotes, which form meiotic quadrivalents in chain and chain + ring configurations, and (b) complex heter...
متن کاملStudy of male–mediated gene flow across a hybrid zone in the common shrew (Sorex araneus) using Y chromosome
Despite many studies, the impact of chromosome rearrangements on gene flow between chromosome races of the common shrew (Sorex araneus Linnaeus, 1758) remains unclear. Interracial hybrids form meiotic chromosome complexes that are associated with reduced fertility. Nevertheless comprehensive investigations of autosomal and mitochondrial markers revealed weak or no barrier to gene flow between c...
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The species of the common shrew (Sorex araneus) group are morphologically very similar but exhibit high levels of karyotypic variation. Here we used genetic variation at 10 microsatellite markers in a data set of 212 individuals mostly sampled in the western Alps and composed of five karyotypic taxa (Sorex coronatus, Sorex antinorii and the S. araneus chromosome races Cordon, Bretolet and Vaud)...
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