Fig. 3.

Enriched Gene Ontology (GO) terms in the two sorghum genotypes in response to aphid herbivory. GO terms were compared among the 2-wk old resistant sorghum a, 2-wk old susceptible sorghum b, 6-wk old resistant sorghum c, and the 6-wk old susceptible sorghum (d). GO terms (FDR corrected p-value < 0.05) with significant numbers of up-regulated or down-regulated genes were identified by contrasting gene expression in response to aphid herbivory and control (aphid-free plants). DEGs were then grouped into and biological process, molecular function, and cellular component categories. Color of the bars refers to the –log² corrected p-value of the respective GO term. Red colored bars indicate enriched GO terms in up-regulated genes, and blue colored bars indicate enriched pathways in down-regulated genes. The darker the red color the higher statistical significance