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The central brain neurons play a role in the quicker removal of male ejaculate by Drosophila females in response to male pheromones

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/433138
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한국응용곤충학회 (Korean Society Of Applied Entomology)
초록

From invertebrate to vertebrate, females uptake sperm for a specific duration post-copulation known as the ejaculate holding period (EHP) before expelling un-stored sperm and the mating plug through sperm ejection. Our study uncovered that encountering males or mated females after mating substantially shortens EHP, a phenomenon we term ‘male-induced EHP shortening (MIES)’. MIES requires Or47b+ olfactory and ppk23+ gustatory neurons, activated by 2-methyltetracosane and 7-tricosene, respectively. These odorants raise cAMP levels in pC1b and c neurons, which are responsible for processing male courtship and regulating female receptivity. Elevated cAMP levels in pC1b and c reduce EHP and reinstate their responsiveness to male courtship cues, promoting re-mating with faster sperm ejection. This study establishes MIES as a genetically tractable model of sexual plasticity with a conserved neural mechanism.

저자
  • Minsik Yun(School of Life Sciences, Gwangju Institute of Science and Technology (GIST))
  • Young-Joon Kim(School of Life Sciences, Gwangju Institute of Science and Technology (GIST))
  • Young-Joon Kim(School of Life Sciences, Gwangju Institute of Science and Technology (GIST))