Magnitude and dominance of resistance to Cry1Ac in H. armigera associated with cadherin resistance alleles: r15 in the cytoplasmic domain and r1 in the extracellular region.

aConcentration killing 50% of larvae and 95% fiducial limits (µg Cry1Ac per cm2 diet).bResistance ratio = LC50 of a strain or F1 progeny from a cross divided by LC50 of the susceptible SCD strain.cSurvival at the diagnostic concentration (1 µg Cry1Ac per cm2 diet), n = 48.dh ranges from 0 for completely susceptible to 1 for completely dominant.eh calculated from LC50 values [34].fh calculated from survival at the diagnostic concentration [34].gh is calculated only for F1 progeny from crosses between resistant and susceptible strains.hResults pooled from the two reciprocal crosses.