Figure 2
From: Linkage disequilibrium blocks, haplotype structure, and htSNPs of human CYP7A1 gene
Haplotype frequencies of the HapMap selected SNPs in the CYP7A1 gene in CEU, YRI, JPT, and CHB. In each haplotype, blue bars represent allele 1, whereas red bars represent allele 2 for correlated SNPs. Black bars indicate that the SNPs are not present in this population. Numbers next to each haplotype bar are haplotype frequencies. Up-side-down red triangles indicate htSNPs in the populations. In the crossing areas, a value of multiallelic D' is shown to represent the level of recombination between the two blocks.