Figure 1.

DNA Methylation Profiles Near Genes in Double Mutants.

(A) Methylation in 14-DAP embryo. All genes were defined by their annotated transcription start sites (TSS) and polyadenylation sites (polyA) and split into nonoverlapping 100-bp intervals. Methylation for each sample was calculated as the proportion of methylated C over total C in each sequence context (CHH, CCH, CHG, and CG) averaged for each 100-bp interval.

(B) Methylation in 14-DAP endosperm, as in (A).

(C) Methylation in mature endosperm, as in (A).

(D) Methylation in mature B73 endosperm, as in (A). The wild type was derived from Mop1 homozygous siblings of the mop1-1 mutants.