Fig. 2

The enrichment analysis of the DEGs and DAPs using GO and KEGG pathways. a, b GO classifications of DEGs in PM_PS (a) and PL_PM (b), respectively. The horizontal axis shows the top 30 enriched GO terms in the biological process, molecular function, and cellular component categories. The vertical axis shows the number of genes enriched in each term. c, d GO classifications of DAPs in PM_PS (c) and PL_PM (d), respectively. The horizontal axis shows the top 20 enriched GO terms in the biological process, molecular function, and cellular component categories. The vertical axis shows the number of proteins enriched in each term. The height and color of each histogram indicates the number of genes/proteins and p values of the enriched term. The label of each histogram indicates the rich factor, which represents the ratio of DEG/DAPs to total genes/proteins identified in GO functional category. e, f KEGG pathways enrichment of DEGs in PM_PS and PL_PM, respectively. g–h KEGG pathways enrichment of DAPs in PM_PS and PL_PM, respectively. The horizontal axis shows the enrichment factors of the KEGG pathways terms (e, f), and the number of proteins enriched in each term (g, h). The vertical axis shows the top enriched KEGG pathways terms. The size and color of the circle indicates the number of genes and p values of the enriched term, respectively. The length and color of each histogram indicates the number of proteins and p values of the enriched term. The label of each histogram indicates the rich factor, which represents the ratio of DEG/DAPs to total genes/proteins identified in KEGG pathway functional category