Drosophila hybrids in nature: proof of gene exchange between sympatric species - PubMed (original) (raw)
Drosophila hybrids in nature: proof of gene exchange between sympatric species
H L Carson et al. Science. 1975.
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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