Figure 2. Linkage disequilibrium (LD) blocks and haplotype frequencies for FGF2 in the discovery sample.

(a) LD blocks are marked with triangles. Squares color scheme represents the value of r², and the black color indicates strong LD. (b) Haplotypes in the three blocks across FGF2. The haplotype frequencies are shown to the right of each haplotype. The SNP numbers correspond to those in Table 2.