Extended Data Fig. 3: Standing genetic variation in ancestral populations and total genetic variation per evolved population.
From: Experimental evolution of adaptive divergence under varying degrees of gene flow
a. Venn diagram displaying the number of genetic variants per genetic background in the two ancestral populations at the beginning of the experiment. The left panel includes all variants, whereas the right panel is restricted to variants with allele frequency higher than 0.2. b. Boxplot with number of genetic variants per population, differentiating between standing genetic variation and new mutations emerging during the experiment. Panels include either all variants or only variants with allele frequency higher than 0.2, as well as between genetic backgrounds (α and β genetic background). The orange point shows the number of genetic variants in ancestral populations at the beginning of the experiment. At the end of the experiment we counted in total 1,472 and 1,318 genetic variants (α and β respectively) of which 1,217 and 1,061 arose de-novo during the experiment. Most variants were present at low frequencies (1,179 and 1,073 variants with a maximum frequency of 0.2), and most were limited to single populations (950 and 809 variants). At the end of the experiment, each of the 132 evolved populations had between 71 and 183 mutations. Boxplots as in Extended Data Fig. 1.
