Figure 1
From: Differences in smoking associated DNA methylation patterns in South Asians and Europeans
Manhattan plot showing association between current and never tobacco smoking and genome-wide DNA methylation. The continuous line marks the P ≤1.1 × 10-7 significance threshold. CpG sites with corresponding P-values at ≤1.1 × 10-7 are colour coded to show the direction of difference between smokers and non-smokers. Red CpG sites are hypermethylated in current smokers while blue CpG sites are hypomethylated.