Gene Coexpression and Evolutionary Conservation Analysis of the Human Preimplantation Embryos

Figure 3

(a) Box plot of conserved index during different development stages. Conservation is measured by the nonsynonymous to synonymous substitution ratios (). (b) The median of ratio in each stage is represented by the solid line. The dash lines denote the median and the 95% confidence interval for the ratio of randomly selected genes, which have same number of genes in corresponding stage. The asterisks denote that are significantly different () from the median of background.

(a)

(b)