Fig. 3: GWAS results for escalation of heroin intake across the entire session.

Regional association plot for chromosome 10, with the top SNP in purple and chromosome location indicated on the plot. Other SNPs are colored based on their linkage disequilibrium with the top SNP. Known genes of SNPs are indicated below the plots. Significance threshold: red line, p < 0.10; blue line, p < 0.05 (n = 874).