Article
Phenotypic variation across chromosomal hybrid zones of the common shrew (Sorex araneus) indicates reduced gene flow.
PloS one - 1 Jan 2013
Polly P David, Polyakov Andrei V, Ilyashenko Vadim B, Onischenko Sergei S, White Thomas A, Shchipanov Nikolay A, Bulatova Nina S, Pavlova Svetlana V, Borodin Pavel M, Searle Jeremy B
Abstract excerpt
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 divergence. We...
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