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. 1975 Sep 5;189(4205):806-7.
doi: 10.1126/science.1162353.

Drosophila hybrids in nature: proof of gene exchange between sympatric species

H L Carson, P S Nair, F M Sene

Drosophila hybrids in nature: proof of gene exchange between sympatric species

H L Carson et al. Science. .

Abstract

Genetic studies of two closely related endemic Hawaiian species show that in one area of sympatry about 2 percent of the naturally occurring individuals are hybrids. More than 20 times this many would be expected if the population consisted of a single panmictic unit. Despite hybridization, natural selection appears to maintain the essential integrity of each separate gene pool.

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