Fig. 4

Allele frequency dynamics of alleles selected in the parental immigrant populations after imbalanced mixture (cont.) A strong negative correlation between the allele frequency change during the first 20 generations and the starting frequency of the beneficial alleles from the immigrant population in the freshly mixed population. Alleles with a high starting frequency are counter-selected, while low-frequency ones are favored. B PCA of the founder populations (generation 110-130) and the mixture of R10 (immigrant population) and R6 (recipient population). In all three replicates the advanced population samples are moving towards the low-frequency founder population-reflecting the non-random allele frequency changes. Each replicate is indicated by a different red color. For clarity the founder populations R3and R4 are not shown. The corresponding plots for other population pairs are given in Suppl. Fig. 4