Quantile–quantile plots. Quantile-quantile plots for (A) all associations and (B) the bottom 95% of associations. Dots are the uncorrected test statistics. Under the null hypothesis of no association at any locus, the dots would be expected to follow the black line. (A) For all P values, the genomic control parameter = 1.07. (B) For the bottom 95% of P values, the genomic control parameter = 1.00.