Figure 6

Induction of CYP4G2 , CYP4D4v2 , and CYP6A38 in CS and ALHF house flies following treatment with permethrin. The expression of three genes was analyzed by qRT-PCR as described in the materials and methods. A: Relative expression of CYP4G2 in permethrin treated and untreated susceptible CS, aabys and resistant ALHF house flies. B. Relative expression of CYP4D4v2 in permethrin treated and untreated CS, aabys and ALHF house flies. C. Relative expression of CYP6A38 in permethrin treated and untreated CS, aabys and ALHF house flies. The relative level of gene expression shown in Y axis is the ratio of the gene expression in each strain or each treatment in comparison with that in untreated CS flies. The results are shown as the mean ± S.E. There was no significant difference (P ≤ 0.05) in the levels of P450 gene expression among the samples with the same alphabetic letter (i.e., a, b, or c).