Figure 5.

Change of gene expression is independent of how many Levels in the module tree. Assuming n=4~9, the expression of genes in level1, level2, level3 and ESC is depicted in blue, green, red, light blue respectively, while the expression of genes in other levels are nearly zero all the time.

Hu et al. BMC Systems Biology 2011 5(Suppl 2):S8   doi:10.1186/1752-0509-5-S2-S8