A protocol for measuring the sexual receptivity of female Drosophila

Female receptivity in mating is crucial for successful copulation, but protocols for quantifying female behaviors reflecting receptivity are scarce compared to the analysis of male behaviors. Here, we present a protocol for assessing the sexual receptivity of female Drosophilathat considers behaviors from both sexes. We describe steps for preparing and loading flies into a courtship chamber, video recording the behaviors of the pairs, and analyzing their behavioral displays. This protocol includes behavior recognition criteria suitable for typical laboratory settings.