Fig. 1

Hierarchical clustering of mRNAs (a), lncRNAs (b), and circRNAs (c) in placenta samples between SPE and normal controls. Placenta samples were clustered based on the expression profiles of 50 twofold differentially expressed mRNAs, 50 twofold differentially expressed lncRNAs, and 50 twofold differentially expressed circRNAs. The color bar, which increases from green to red comparing SPE samples with matched normal controls, indicates mRNA, lncRNA, and circRNA expression levels