Fig. 1.

Identification of methylation interactions in hybrids. (A) Pipeline used to determine methylation interactions in F1 hybrids. The Arabidopsis genome was divided into 200-bp bins, where DMRs and SMRs were identified by comparing methylation levels of Col and C24. For each 200-bp DMR or SMR, the methylation level of F1 was compared with the PAV to determine TCM and TCdM regions. The region numbers of each group are indicated at the bottom. (B) Schematic model of methylation patterns of different types of loci, including TCM DMR, TCdM DMR, NI DMR, TCM SMR, and NI SMR. (C) Compositions of NI DMRs, TCM DMRs, TCdM DMRs, NI SMRs, and TCM SMRs.