Principal Component Analysis (PCA) plot
PC1 or the x-axis ranks the more important differences and data shows that the percent variance between the RNA sequences of Meristem samples (M1,M2,M3 and M4) and the Leaf samples (L1,L2 and L3) is 92%.
The PC2 or y-axis shows the difference within the clusters, thus L2 is more variant than Leaf samples L1 and L3 at 4%