Fig. 1

DNA methylation levels of three methylated contexts (mCG, mCHG, and mCHH) and distribution in the leaf and root tissues of switchgrass. a The percentage of methylated cytosine sites distribution of mCG, mCHG, mCHH in genes, intergenic regions, and TEs. b Distribution of the methylation levels in each methylated context (the x-axis indicates the methylation level is divided into ten bins from 0 to 100%, and the y-axis represents methylation levels in each bin). c Methylation level in different parts of gene region (Exon; Intron; Five_UTR; Three_UTR). d Methylation level in 80-kb windows throughout chromosome 1a in the leaf tissue of switchgrass. The red line means ‘−’ strand, and the blue line means ‘+’ strand. e The methylation levels of nine different species shown in Additional file 5: Table S2