Fig. 2
From: Divergent composition and transposon-silencing activity of small RNAs in mammalian oocytes
miRNAs are ubiquitously expressed at low levels in mammalian oocytes. A The number of miRNA families detected in oocytes. B Principal component analysis (PCA) of oocyte miRNAs in the 12 representative species (total miRNA families were used for PCA analysis). C Heatmap of the 100 most abundant miRNA families in oocytes. Hierarchical clustering was used to generate a heatmap (method = ‘complete’). GP, guinea pig; GH, golden hamster; CH, Chinese hamster; ZF, zebrafish