Figure 4
The histogram of the minor allele frequencies for those selected SNPs for population models P1 and P2 with random sampling of family samples and moderate QTLs. In each column, (a) represents all SNPs (b) the tag SNPs identified using the haplotype diversity [4], (c) the tag SNPs identified using r2 [6], and (d) the evenly spaced SNPs with minor allele frequencies greater than 0.05, respectively.