Figure 4
From: How does epistasis influence the response to selection?
Adaptation on a rugged landscape. Each panel plots the genetic variance against the trait mean for an additive trait under stabilising selection towards an optimum at zero; fitness is exp (−Sz2/2), with S=0.005. There are 100 loci each with two alleles and symmetric mutation μ=0.0005. Populations are evolved for 104 generations from an initial β distribution with variance Fpq, with F=0.5, p=0.1, 0.5, 0.9 (black, blue, grey). Large dots show the final state for an infinitely large population (100 replicates), whereas small dots show results for a diploid population of N=3 × 104 individuals. The upper panel is for equal effects (γ=1) and the lower panel for unequal effects, drawn from an exponential distribution with mean γ=1. A full colour version of this figure is available at the Heredity journal online.
