Hierarchical clustering on the mean expression data. The conditions cluster into two major groups, one containing BMP4 in the absence of exogenous FGF2 and the other containing all the other treatments and BMP4 in combination with exogenous FGF2. Activin A is common among all the treatments. The TFs cluster into two groups, the late and early endoderm markers.
Mathew et al. BMC Systems Biology 2012 6:154 doi:10.1186/1752-0509-6-154