Figure 4. KEGG enrichment analysis of differential genes. (A) The bubble plot exhibits the KEGG enrichment analysis results of the up-regulated genes. (B) Heatmap of correlation between KEGG pathways and enriched genes of up-regulated genes. (C) The bubble plot exhibits the KEGG enrichment analysis results of down-regulated genes. (D) Heatmap of correlation between KEGG pathways and enriched genes of down-regulated genes. (E) KEGG pathway plot.