Figure 2

Maximal log likelihood value obtained by BIC showed that the optimal number of clusters was 12, so we divided the 5,689 genes into 12 clusters using GQLCluster. Each cluster contained 755, 157, 400, 509, 275, 638, 725, 374, 658, 422, 186 and 590 genes, respectively. The mean expression profiles for each of the 12 clusters were calculated and plotted.