Mitochondrial DNA variation along an altitudinal gradient in the greater white-toothed shrew, Crocidura russula.
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2002
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info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-294X.2002.01487.x
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info:eu-repo/semantics/altIdentifier/pmid/11975709
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info:eu-repo/semantics/altIdentifier/pissn/0962-1083[print], 0962-1083[linking]
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info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_99723B5D91884
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M. Ehinger et al., « Mitochondrial DNA variation along an altitudinal gradient in the greater white-toothed shrew, Crocidura russula. », Serveur académique Lausannois, ID : 10.1046/j.1365-294X.2002.01487.x
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The distribution of mitochondrial control region-sequence polymorphism was investigated in 15 populations of Crocidura russula along an altitudinal gradient in western Switzerland. High-altitude populations are smaller, sparser and appear to undergo frequent bottlenecks. Accordingly, they showed a loss of rare haplotypes, but unexpectedly, were less differentiated than lowland populations. Furthermore, the major haplotypes segregated significantly with altitude. The results were inconsistent with a simple model of drift and dispersal. They suggested instead a role for historical patterns of colonization, or, alternatively, present-day selective forces acting on one of the mitochondrial genes involved in metabolic pathways.