Fig. 4

ZmROS1ab regulates imprinted expression in endosperm when inherited as the maternal allele. a Identification of imprinted genes in endosperm. b The expression levels of differentially expressed MEGs and PEGs between bM and BM F₁ hybrid. The filled black boxes indicate presence of DMRs. The orange and blue boxes indicate down- or upregulation of these genes in bM relative to BM, respectively. c Tissue expression patterns of the MEGs and PEGs. The expression data was from Yi et al. [33]. Refer to Additional file 1: Fig. S1c for details of the tissues. d Comparison of the percentage of maternal reads (i.e., B73) in the BM and bM crosses