Comparison of the patterns of gene expression of four candidate genes CYP6P9 (A), CYP6P4 (B), CYP6AA4 (C), and CYP6P1 (D) between the resistant strain FUMOZ and the susceptible FANG in different life stages. The normalized expression ratio of each gene against the SP7 gene is represented on the primary vertical axis, while the secondary vertical axis represents the fold change of each gene between FUMOZ and FANG. Significant differential expressions are indicated by asterisks: (***) P < 0.001, (**) P < 0.01.