Principal component analysis of gene sets determined to be significantly different using GAGE analysis. A) WGCNA _3, B) WGCNA_11 b C) WGCNA_10, D) KEGG subsystem sub_secVI E) regulon reg_LexA, F) gene cluster ref_cop, G) WGCNA_5, H) WGCNA_9. A solid line notes complete separation of samples from one or more condition, while incomplete separation is noted with a dashed line. Text indicates which samples clustered together. Sample symbols are as in Fig. 1B.