Chromosomal rearrangements and gene flow over time in an inter-specific hybrid zone of the Sorex araneus group
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چکیده
منابع مشابه
Phenotypic Variation across Chromosomal Hybrid Zones of the Common Shrew (Sorex araneus) Indicates Reduced Gene Flow
Sorex araneus, the Common shrew, is a species with more than 70 karyotypic races, many of which form parapatric hybrid zones, making it a model for studying chromosomal speciation. Hybrids between races have reduced fitness, but microsatellite markers have demonstrated considerable gene flow between them, calling into question whether the chromosomal barriers actually do contribute to genetic d...
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...
متن کاملHierarchical analyses of genetic differentiation in a hybrid zone of Sorex araneus (Insectivora: Soricidae)
Microsatellites are used to unravel the fine-scale genetic structure of a hybrid zone between chromosome races Valais and Cordon of the common shrew (Sorex araneus) located in the French Alps. A total of 269 individuals collected between 1992 and 1995 was typed for seven microsatellite loci. A modified version of the classical multiple correspondence analysis is carried out. This analysis clear...
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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 recolonis...
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ژورنال
عنوان ژورنال: Heredity
سال: 2009
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.2009.19