Fig. 2
From: DNA methylation correlates of chronological age in diverse human tissue types
Pairwise overlap of age-associated CpG sites between tissues, including (A) hypermethylated and (B) hypomethylated CpG sites. Overlapping CpG sites passed false discovery rate (FDR) 0.05 in both tissue types. The intensity of the color (red shade for hypermethylated and blue shade for hypomethylated) reflects the number of CpG sites that overlap. Number of (C) hypermethylated (D) hypomethylated CpG sites passing FDR 0.05 against the number of tissues the CpG was identified in