Fisher's model and the genomics of adaptation: restricted pleiotropy, heterogenous mutation, and parallel evolution.

Abstract excerpt

Genetic theories of adaptation generally overlook the genes in which beneficial substitutions occur, and the likely variation in their mutational effects. We investigate the consequences of heterogeneous mutational effects among loci on the genetics of adaptation. We use a generalization of Fisher's geometrical model, which assumes multivariate Gaussian stabilizing selection on multiple characters. In our model,...

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