Fig. 4

Enrichment pattern of different pathway categories in brown and green modules. The frequency of transcripts in each pathway category was calculated as a percentage of the cluster and compared with the percentage of the genome. Overrepresented and underrepresented functional groups in each cluster, as determined by Fisher’s exact test (p ≤ 0.05), are indicated with red and blue asterisks, respectively. For a complete list of all functional groups in all clusters, see Additional file 5: Table S5