Figure 1

Relative expression of cytochrome esterase E4 (A) and P450 CYP6CY3 (B) genes (±SE) in M. persicae at initial generation (control), F1 and F4 generation (neonicotinoid and pyrethroid exposure for one and four generations, respectively). Bars having different letters are significantly different, respectively (P < 0.05). Lower case (a,b) and uppercase (A,B) letters are used to distinguish the two insecticides of one class in (A) or (B).