Scatterplot of enriched KEGG pathways for differentially expressed genes between any two silkworms. Rich factor is the ratio of the differentially expressed gene number to the total gene number in a certain pathway. The characters a, b, c, d, e, and f correspond to the comparisons D_CH vs D_CY, W_AKSQ vs W_AKBH, W_AKBH vs D_CH, W_AKBH vs D_CY, W_AKSQ vs D_CH, and W_AKSQ vs D_CY, respectively. The size and color of the dots represent the gene number and the range of the FDR value, respectively. The grey dot indicates a pathway that was not significantly enriched (the FDR value is 0.08).