Figure 5

The inverse relationship between the expression levels and expression variability of TE exons. A: The effects of genomic factors on the middle digital expression level of TE exons (the median of the rescaled RPKMs across the 26 samples). B: The effects of genomic factors on the coefficient of variance for the rescaled RPKM of TE exons across the 26 samples. C: The scatter plot of the median(s) and the coefficient(s) of variance. The TE exons hosted by the genes un-expressed in over half of samples are excluded before the statistical analysis (using Model-2). The height of an error bar in Plots A and B represents the two-time standard error of the corresponding effect coefficient. In Plot C, the correlation was calculated by the Kendall method.