From the back or front: the courtship position is a matter of smell and sight in Drosophila melanogaster males.

摘要: During courtship, Drosophila melanogaster males usually position themselves behind the target female. To decipher sensory cues that guide to courting position, we quantitatively analyzed male locomotion traces within a circular observation chamber, at center of which an immobilized virgin female was placed as courtship target. Wild-type preferentially stayed under not only daylight but also dark conditions, indicating vision is dispensable for orientation by males. By contrast, olfaction-defective Or83b2 homozygous often positioned in front court conditions. We conclude and olfaction redundantly fly move perform actions. The visual olfactory features provide with differentiating between back end are yet be determined.