Fig. 4

a some critical DE genes and their belonged GO terms and pathways. Green ticks represent the enriched GO terms and pathways. Squares represent the critical DE genes, of which yellow ones represent the seven critical DE genes involved in more than three GO terms or pathways. GO, Gene Ontology; DE genes, differentially expressed genes. b protein-protein interaction (PPI) network of the seven critical DE genes involved in more than three GO terms or pathways