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

Ken Ichi Kimura, Chiaki Sato, Kana Yamamoto, Daisuke Yamamoto

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

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

    Original languageEnglish
    Pages (from-to)18-22
    Number of pages5
    JournalJournal of neurogenetics
    Volume29
    Issue number1
    DOIs
    Publication statusPublished - 2015 Mar 1

    Keywords

    • Fruit fly
    • Innate behavior
    • Mating
    • Olfaction
    • Vision

    ASJC Scopus subject areas

    • Genetics
    • Cellular and Molecular Neuroscience

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