Fig. 2

Comparison of ASIGs between tissues or hybrid crosses. (A) Proportion of maternal (M) and paternal (P) reads for ASIGs identified in the endosperm of BC/CB and BM/MB. The blue and red dots represented that all ASIGs in BC/CB and B-MEGs in BM/MB, respectively. (B) Proportion of maternal (M) and paternal (P) reads for ASIGs identified in the endosperm of BC/CB and MC/CM. The blue and red dot represented that all ASIGs in BC/CB and C-PEGs in MC/CM, respectively. (C-E) Expression patterns for three ASIGs. Zm00001d002150 is a B-MEG in endosperm from BC/CB and BM/MB (C). Zm00001d038971 is a B-MEG in endosperm from BC/CB and BM/MB (D). Zm00001d043805 is a C-PEG in endosperm from BC/CB and MC/CM (E). For each bar, the upper portion represents the proportion of paternal expression, and the lower portion represents the proportion of maternal expression. The blue, red, and black bar represent the B73, CAU5 and Mo17 alleles, respectively. The yellow dashed line across the plot represents the expected biallelic ratio of 66% maternal reads. Black boxes highlight the non-imprinted allele. (F-H) Venn diagram analysis of ASIGs identified in the embryo and endosperm of one hybrid cross