Fig. 5

Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis of differentially expressed genes (DEGs) in the root and shoot of Brassica napus seedlings in response to cadmium stress. a and b represented the top 20 enriched pathways in the root and shoot, respectively. Each circle represents a KEGG pathway, the Y-axis represents the pathway name, and the X-axis represents the enrichment factor, which compares the ratio of genes annotated to a pathway among the DEGs to the ratio of genes annotated to that pathway among all genes. The larger the enrichment factor, the more significant the enrichment of DEGs in the pathway