Title |
Widespread horizontal genomic exchange does not erode species barriers among sympatric ducks
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Published in |
BMC Ecology and Evolution, April 2012
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DOI | 10.1186/1471-2148-12-45 |
Pubmed ID | |
Authors |
Robert HS Kraus, Hindrik HD Kerstens, Pim van Hooft, Hendrik-Jan Megens, Johan Elmberg, Arseny Tsvey, Dmitry Sartakov, Sergej A Soloviev, Richard PMA Crooijmans, Martien AM Groenen, Ronald C Ydenberg, Herbert HT Prins |
Abstract |
The study of speciation and maintenance of species barriers is at the core of evolutionary biology. During speciation the genome of one population becomes separated from other populations of the same species, which may lead to genomic incompatibility with time. This separation is complete when no fertile offspring is produced from inter-population matings, which is the basis of the biological species concept. Birds, in particular ducks, are recognised as a challenging and illustrative group of higher vertebrates for speciation studies. There are many sympatric and ecologically similar duck species, among which fertile hybrids occur relatively frequently in nature, yet these species remain distinct. |
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