Historical biogeography of Drosophila simulans based on Y-chromosomal sequences |
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Authors: | Kopp Artyom Frank Amanda Fu Jeffrey |
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Affiliation: | Section of Evolution and Ecology, Center for Genetics and Development, University of California-Davis, 95616, USA. akopp@ucdavis.edu |
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Abstract: | Y-chromosomal sequences have been used for phylogeographic studies in humans and other mammals, but so far have been ignored as a source of historical information in Drosophila and other insects with X/Y sex determination. Here, we present the first phylogeographic study of Drosophila simulans based on the Y chromosome. Geographic distribution of Y-chromosomal haplotypes suggests a high degree of population subdivision within Africa, as well as between the African and cosmopolitan groups of populations. Consistent with earlier studies based on autosomal and X-linked loci, our results suggest that D. simulans originated in Madagascar or East Africa, and that the South and West African populations of this species are derived. |
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