Number of up-regulated microRNAs is higher in the bB2 embryos than in the nB2 embryos. (A) Venn diagram showing the numbers of significantly up- (top) and down-regulated (bottom) miRNAs in bB2 or nB2 embryos relative to both parental embryos. (B) Volcano plot showing pairwise comparison of the abundances of miRNAs between the bB2 and nB2 hybrid embryos. Shown is log2 fold changes (FC) of miRNA expression in bB2 relative to nB2 embryos. miRNAs with significant up- or down-regulation, or no significant change relative to both parents, are highlighted in red, blue, and gray, respectively. Names of the miRNAs that are significantly up- or down-regulated specifically in the bB2 embryos compared with both parents are indicated.
