A theoretical method for evaluating the relative importance of positive selection and neutral drift from observed base changes.

Abstract excerpt

To evaluate the relative importance of positive selection and neutral drift from the nucleotide base changes observed in the homologous alignment of genes, a theoretical equation of base changes is formulated by including both the influence of selection and the base substitutions due to mutations. Under the assumption that the average rate of base substitutions estimated from synonymous changes is the "true"...

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