Fig. 1From: Consistent inverse correlation between DNA methylation of the first intron and gene expression across tissues and speciesDNA methylation per gene in gene features in muscle (a) and in testis (b). Kernel density plots for DNA methylation in genes (n = 15,456), promoters (− 1000 bp from the transcription start site; n = 5034), all introns (n = 9184) and all exons (n = 12,317). Separation of exons in first exon (n = 5790) and rest of exons (n = 8798) and of introns in first intron (n = 4387) and rest of introns (n = 5646)Back to article page