Fig. 4
From: Epigenome data release: a participant-centered approach to privacy protection
Density of pairwise CpG methylation correlation between adipose tissue samples at selected CpGs. Pairwise correlation was calculated between all possible pairs of TwinsUK adipose tissue samples. a All of the selected 1306 genotype-correlated CpGs on the 450 K array. b One or more SNPs or mapping multiple sites are overlapped by 699 probes. c For 607 probes, there is no SNP in the probe-binding region. Correlations at these sites between monozygotic twins is extremely high (green), whereas dizygotic twins are correlated to a lesser degree (red) and unrelated individuals have markedly lower correlation (blue)