Gene ontology (GO) enrichment column diagram. (A) GO enrichment analysis of cotton differentially expressed genes after feeding by Acyrthosiphon gossypii (Acy); (B) GO enrichment analysis of cotton differentially expressed genes after feeding by Aphis gossypii (A); (C) GO enrichment analysis of cotton differentially expressed genes after feeding by both of Acyrthosiphon gossypii and Aphis gossypii (AcyA). Different colors to distinguish biological processes, cellular components, and molecular functions. GOterm plot with ‘*’ for significant enrichment.