Methods for incorporating the hypermutability of CpG dinucleotides in detecting natural selection operating at the amino acid sequence level.

Abstract excerpt

In detecting natural selection operating at the amino acid sequence level by comparing the rates of synonymous (r(S)) and nonsynonymous (r(N)) substitutions, the rates of synonymous and nonsynonymous mutations are assumed to be approximately the same. In reality, however, these rates may not be the same if different proportions of synonymous and nonsynonymous sites overlap with CpG dinucleotides, which are known...

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