Figure 2.
The discrete expression patterns of lncRNAs and mRNAs. (A) Principal component analysis (PCA) of 64-pair distinct samples across the four ages based on normalized mRNAs (top) and lncRNAs (bottom) expression level. The samples were grouped by brain region, and the ellipse for each group is the confidence ellipse. (B) Heat map of correlation coefficient for 64 samples based on the lncRNA expression level. The samples were grouped by hierarchical clustering, and the dendrogram was not shown. (C,D) Bar plot presentation of differentially expressed mRNAs (C) and lncRNAs (D) based on neighboring age groups.
