Figure 5.

Hierarchical clustering and functional category analysis of 430-gene biomass commonly induced core set (BICS). BS, barley straw; C1, cluster 1; C2, cluster 2; C3, cluster 3; CS, corn straw; RS, rice straw; SS, soybean straw; WS, wheat straw. (A) Hierarchical clustering analysis of log₂ fold changes in each crop residue versus the sucrose condition. The gene numbers for each cluster are shown in brackets. “No carbon” data were derived from a reference [20]. (B–E) Functional category analysis [29] of C1, C2, C3 (biomass regulon, BR), and biomass unique set (BUS, including 88 genes) from C3 compared with three polysaccharide regulons (see Figure 6A), respectively. Categories with FunCat hits more than three and P value < 0.05 are shown.