Figure 3From: Deep sequencing on genome-wide scale reveals the unique composition and expression patterns of microRNAs in developing pollen of Oryza sativaPrincipal component analysis of all kn-miRs and nov-miRs from the six examined samples. (a) Principal component analysis plot. The first (x-axis) and second principal component (y-axis) accounted for 44.9% and 17.2%, respectively, of the total variation in the data. (b, c) Score contributor plot for the first (b) and second (c) principal components. miRNAs with score contribution more than the absolute value of 2 are illustrated in the plot.Back to article page