Figure 2From: The evolution of the coding exome of the Arabidopsisspecies - the influences of DNA methylation, relative exon position, and exon lengthThe evolutionary rates ( d N / d S ratio, d N , and d S ) of first, last, and internal coding exons in different methylome datasets. The curves with stars indicate statistically significant difference. ***: p < 0.001, by Wilcoxon Rank Sum Test.Back to article page