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Population Genomics of Parallel Adaptation in Threespine Stickleback using Sequenced RAD Tags

Figure 7

Differentiation among oceanic and freshwater populations on Linkage Groups I, II, and IV.

For each linkage group, the upper panel shows population differentiation (FST) of each freshwater population from the two oceanic populations, plotted as the mean of the two freshwater versus oceanic comparisons for each freshwater population: BP (blue), BL (red), ML (green). Colored bars indicate regions of bootstrap significance (p≤10−5) for the corresponding population. The lower panel shows FST for the overall oceanic-freshwater comparison (black), FST among the three freshwater populations (orange), and corresponding regions of significance (p≤10−5), along with FST values (blue circles) at single nucleotide polymorphisms at which population differentiation is significant at the level of α = 10−20 in a G-test corrected for false discovery rate. Vertical shading indicates boundaries of the peaks used for candidate gene annotation. (A) LG I. (B) LG II. (C) LG IV.

Figure 7

doi: https://doi.org/10.1371/journal.pgen.1000862.g007