Figure 3

Significance of pairwise LD between different sites. Each variable site for a particular locus and population is represented along the left diagonal as well as across the top of each triangle. The significance of the pairwise comparison is represented as a diamond where they intersect, with black P < 0.01, grey 0.01 <P < 0.05 and white nonsignificant. Each triangle has a different number of diamonds because each locus and population harbored a different number of variable sites. Black lined inverted triangles indicate comparisons within 1 kb (within one of the sequenced amplicons, thus two triangles in most cases), as do the horizontal lines above each graph. Comparisons across approximately 10 kb (between the two sequenced amplicons at each locus) fall outside of those black lined inverted triangles. No pairwise comparisons were computed for the CAA locus for the California population because there was not sufficient nucleotide variation. Refer to Table 2 for total number of variable sites per locus for each of the populations.