Mortality of the susceptible strain (SCD), strains with one or two knockouts (C2-KO, C3-KO, and C2/3-KO), and progeny of various crosses in bioassays with Cry1Ac (0.05 μg Cry1Ac per cm² diet).

Mortality was 100% for the first five strains and crosses at the left and 0% for C2/3-KO. Error bars show the upper limit of the 95% confidence interval. Asterisks indicate the two strains and two crosses with significantly lower mortality than SCD; P values from Fisher’s exact test: * = 0.014, ** = 0.0067, *** = 5 X 10⁻⁸ for C2/3-KO X C2-KO and 5 X 10⁻⁵⁷ for C2/3-KO.