Fig. 4

EAG responses of Spodoptera littoralis wild type and SlitOr40-knockout moth antennae to β-caryophyllene and α-humulene: Three doses for both compounds were tested: 1 μg, 10 μg, and 100 μg (n = 10 per sex). The slope of dose-response to A β-caryophyllene and B α-humulene are sex-independent. In KO moths, the slope of dose-response is significantly different from WT (dose*genotype interaction). The response to β-caryophyllene was completely abolished in KO moths, while the dose-response to α-humulene was reduced but still significantly different from WT