Fig. 2From: Mutagenesis of the odorant receptor co-receptor (Orco) reveals severe olfactory defects in the crop pest moth Helicoverpa armigeraThree different hybrid combinations of homozygous individuals (Orco−/−) and wild type Helicoverpa armigera individuals. In each group, the individual on the left is female and the individual on the right is male. The third group was also used to maintain the homozygous mutant (Orco−/−) in each generationBack to article page