Figure 1. DNA methylation status and chromosomal distribution in different rice cultivars.
(a) The relative fraction of methylcytosines (mCs) identified in each sequence context (CG, CHG and CHH) in three rice cultivars, IR64, N22 and Pokkali. Blue, CG; maroon, CHG; green, CHH. (b) Box-plot showing distribution of DNA methylation level in each sequence context in different cultivars. Significant differences (Fisher’s exact text) are marked with asterisks (***P < 1 × 10−10). (c) The density of mCs (identified in each sequence context on two DNA strands), genes and transposable elements (TEs) throughout chromosome 1 (bin size 100 kb). N22, Nagina 22; PK, Pokkali.