(A) Plots of LD by coefficient r2 among SNPs in ABCA1, ADPRT, F5, and SLC12A3 for the Japanese. (B) Plots of LD among SNPs in LPL for the Japanese, African Americans, and Caucasians. In the Japanese, SNP1 and SNP4 are not polymorphic, and their pixels are in light gray. Three clusters of SNPs having strong intracluster LD are marked with A, B, and C. A mosaic pattern consisting of these LD clusters appeared to be common to the three ethnic populations. (C) The positions of 25 SNPs in the LPL gene (see Table 1).