Fig. 3

The genes identified with differential histone modification levels in Ler/C24 hybrids relative to the average modification levels of the parents. a The numbers of differentially modified genes (fold-change ≥ 1.25 and p-value ≤ 0.05) for the four histone marks in the reciprocal hybrids. The percentages indicate proportions of DMGs in all the genes with each histone mark. Asterisks indicate significant differences of gene numbers between reciprocal hybrids (*p-value ≤ 0.05; **p-value ≤ 0.01; ***p-value ≤ 0.001). P-values were calculated using the Fisher’s Exact Test. b Venn-diagram showing the overlaps between the differentially modified genes by K27me3 in the parents and hybrids