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The neutral theory in the genomic era
1Committee on Genetics, University of Chicago, 1101 East 57th Street, Chicago, Illinois 60637, USA. jcfay@lbl.gov
Current Opinion in Genetics & Development
|October 30, 2001
Abstract:
A number of tests have been developed to detect positive selection at the molecular level. These tests are based on DNA polymorphism within and divergence between species. Applications of these tests have revealed a large collection of genes that have evolved under positive selection and some general insights into adaptive evolution. Recently, these tests have been applied on a genomic scale and have provided estimates of the frequency of adaptive substitutions and a critical test of the neutral theory.