Fig. 3: Weighted methylation level (wML) among four populations.

a–c Box plots of genome-wide weighted methylation level (wML) in (a) CpG, (b) CHG, and (c) CHH context (N = 5). Uppercase letters indicate statistical differences among populations using Wilcoxon test (with bonferroni method for multiple tests corrections). d–f wML in the gene body and its flanking 2 kb regions in (d) CpG, (e) CHG, and (f) CHH context. g–i wML in TE and its flanking 2 kb regions in (g) CpG, (h) CHG, and (i) CHH context. The asterisks indicate significant differences between populations (P < 0.05; Wilcoxon test), while “n.s.” indicates no significant difference.