DNA methylation pattern in the japonica rice (Dianjingyou1). (a) Relative proportions of mCs in three sequence contexts. (b) Distribution of methylation level of mCs in each sequence context. Only mCs covered by at least 5 reads were used to calculate methylation level. Methylation level on the x-axis was defined as the percentage of reads showing methylated cytosine at a reference cytosine site. The y-axis indicates the fraction of total mCs calculated within bins of 10%.