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Genome-Wide Patterns of Genetic Variation within and among Alternative Selective Regimes

Figure 1

Selection history of the experimental populations.

The Grand Ancestor population (GA) was maintained in benign laboratory conditions, and was used to initiate populations maintained on salt-enriched media (AS) or cadmium-enriched media (AC). The treatment populations were produced by crossing two ancestral population AS and AC. There are 5 replicate populations of each of the four treatments (not illustrated).

Figure 1