Title |
Signals of demographic expansion in Drosophila virilis
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Published in |
BMC Ecology and Evolution, February 2008
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DOI | 10.1186/1471-2148-8-59 |
Pubmed ID | |
Authors |
Patricia M Mirol, Jarkko Routtu, Anneli Hoikkala, Roger K Butlin |
Abstract |
The pattern of genetic variation within and among populations of a species is strongly affected by its phylogeographic history. Analyses based on putatively neutral markers provide data from which past events, such as population expansions and colonizations, can be inferred. Drosophila virilis is a cosmopolitan species belonging to the virilis group, where divergence times between different phylads go back to the early Miocene. We analysed mitochondrial DNA sequence variation among 35 Drosophila virilis strains covering the species' range in order to detect demographic events that could be used to understand the present characteristics of the species, as well as its differences from other members of the group. |
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