Article
Genomic evidence of rapid and stable adaptive oscillations over seasonal time scales in Drosophila.
PLoS genetics - 1 Nov 2014
Bergland Alan O, Behrman Emily L, O'Brien Katherine R, Schmidt Paul S, Petrov Dmitri A
Abstract excerpt
In many species, genomic data have revealed pervasive adaptive evolution indicated by the fixation of beneficial alleles. However, when selection pressures are highly variable along a species' range or through time adaptive alleles may persist at intermediate frequencies for long periods. So called "balanced polymorphisms" have long been understood to be an important component of standing genetic variation, yet...
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