Fig. 1

Differential expression of circular RNAs between polycystic ovary syndrome and control samples. A Supervised hierarchical clustering of the PCOS and control groups. Red = up- regulated; green = down-regulated. B Volcano plots visualizing the differentially expressed circRNAs. The red and blue plots represent the statistically significantly up- and down-expressed circRNAs respectively. A schematic overview of the circRNA sequencing results showing the distribution of circRNAs based on length (C) and chromosomal location (D)