Non-Recessive Bt Toxin Resistance Conferred by an Intracellular Cadherin Mutation in Field-Selected Populations of Cotton Bollworm
Figure 2
Responses to Bt toxin Cry1Ac of H. armigera from a susceptible strain (SCD, blue), three resistant strains (red), and the F1 progeny from crosses between each resistant strain and the susceptible strain (purple).
SCD-r1: resistant strain with allele r1 affecting the extracellular domain of HaCad. XJ-r15 and AY-r15: resistant strains (from Xiajin and Anyang, respectively) with allele r15 affecting the cytoplasmic domain of HaCad. Resistance ratio is the concentration killing 50% of larvae (LC50) of each strain or group of F1 progeny divided by the LC50 for the susceptible SCD strain. The black bars show the 95% fiducial limits for LC50.