Experimental Evidence That Phenotypic Evolution but Not Plasticity Occurs along Genetic Lines of Least Resistance in Homogeneous Environments.

Abstract excerpt

AbstractGenetic correlations concentrate genetic variation in certain directions of the multivariate phenotype. Adaptation and, under some models, plasticity is expected to occur in the direction of the phenotype containing the greatest amount of genetic variation (gmax). However, this may hinge on environmental heterogeneity, which can affect patterns of genetic variation. I use experimental evolution to test...

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