Fig. 2

DNA methylation pattern in gene functional region under mC, mCG, mCHG and mCHH contexts. a Average density of DNA methylation in the promoter, 5′UTR, exon, intron and 3′UTR region under three contexts of NJCMS5A; b Average density of DNA methylation in the promoter, 5′UTR, exon, intron and 3′UTR region under three contexts of NJCMS5B. Each functional region was equally divided into 20 bins, and the mean of methylated cytosine density in each bin was defined as methylation density