Article
Evolution at the tip and base of the X chromosome in an African population of Drosophila melanogaster.
Molecular biology and evolution - 1 May 1995
Begun D J, Aquadro C F
Abstract excerpt
Hitchhiking effects of advantageous mutations have been invoked to explain reduced polymorphism in regions of low crossing-over in Drosophila. Besides reducing DNA heterozygosity, hitchhiking effects should produce strong linkage disequilibrium and a frequency spectrum skewed toward an excess of rare polymorphisms (compared to the neutral expectation). We measured DNA polymorphism in a Zimbabwe population of D....
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