Supplementary Figure 2: Quantile–quantile (Q–Q) plot of the GWAS analysis of Chinese individuals.
From: Genome-wide association analysis identifies 30 new susceptibility loci for schizophrenia

The Q-Q plot representative of observed (y axis) vs. expected (x axis) SNP P values distribution. Expected P values are those expected under the null hypothesis, and the uniform null distribution is marked with a red line.