Selection of standing genetic diversity does not explain adaptation. Bi-plots of the fitness responses at generation 35 of experimental evolution (Δw
; shown in Figure 4) with the homozygosity (A) or pairwise linkage disequilibrium (B) of single nucleotide polymorphisms genotyped at generation 22 (see Methods). Axes are truncated for clarity. Symbols show the observed mean and the standard error of the mean among replicate populations of the three reproduction systems, as well as the mean of the lab-adapted androdioecious population, ancestral to them all. Analysis of this data is presented in Table 1.