Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males

Summary: In internal fertilization animals, reproductive success depends on maintaining copulation until gametes are transported from male to female. In Drosophila melanogaster, mechanosensation in males likely contributes to copulation maintenance, but its molecular underpinning remains to be ident...

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Main Authors: Hayato M. Yamanouchi, Ryoya Tanaka, Azusa Kamikouchi
Format: Article
Language:English
Published: Elsevier 2023-05-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004223006946
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author Hayato M. Yamanouchi
Ryoya Tanaka
Azusa Kamikouchi
author_facet Hayato M. Yamanouchi
Ryoya Tanaka
Azusa Kamikouchi
author_sort Hayato M. Yamanouchi
collection DOAJ
description Summary: In internal fertilization animals, reproductive success depends on maintaining copulation until gametes are transported from male to female. In Drosophila melanogaster, mechanosensation in males likely contributes to copulation maintenance, but its molecular underpinning remains to be identified. Here we show that the mechanosensory gene piezo and its’ expressing neurons are responsible for copulation maintenance. An RNA-seq database search and subsequent mutant analysis revealed the importance of piezo for maintaining male copulation posture. piezo-GAL4-positive signals were found in the sensory neurons of male genitalia bristles, and optogenetic inhibition of piezo-expressing neurons in the posterior side of the male body during copulation destabilized posture and terminated copulation. Our findings suggest that the mechanosensory system of male genitalia through Piezo channels plays a key role in copulation maintenance and indicate that Piezo may increase male fitness during copulation in flies.
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spelling doaj.art-e6e3a9bcfdbd45e994d7320f71a2c04a2023-04-19T04:23:14ZengElsevieriScience2589-00422023-05-01265106617Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila malesHayato M. Yamanouchi0Ryoya Tanaka1Azusa Kamikouchi2Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, JapanGraduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan; Corresponding authorGraduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8602, Japan; Corresponding authorSummary: In internal fertilization animals, reproductive success depends on maintaining copulation until gametes are transported from male to female. In Drosophila melanogaster, mechanosensation in males likely contributes to copulation maintenance, but its molecular underpinning remains to be identified. Here we show that the mechanosensory gene piezo and its’ expressing neurons are responsible for copulation maintenance. An RNA-seq database search and subsequent mutant analysis revealed the importance of piezo for maintaining male copulation posture. piezo-GAL4-positive signals were found in the sensory neurons of male genitalia bristles, and optogenetic inhibition of piezo-expressing neurons in the posterior side of the male body during copulation destabilized posture and terminated copulation. Our findings suggest that the mechanosensory system of male genitalia through Piezo channels plays a key role in copulation maintenance and indicate that Piezo may increase male fitness during copulation in flies.http://www.sciencedirect.com/science/article/pii/S2589004223006946MechanobiologyMolecular physiologyBehavioral neuroscience
spellingShingle Hayato M. Yamanouchi
Ryoya Tanaka
Azusa Kamikouchi
Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males
iScience
Mechanobiology
Molecular physiology
Behavioral neuroscience
title Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males
title_full Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males
title_fullStr Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males
title_full_unstemmed Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males
title_short Piezo-mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in Drosophila males
title_sort piezo mediated mechanosensation contributes to stabilizing copulation posture and reproductive success in drosophila males
topic Mechanobiology
Molecular physiology
Behavioral neuroscience
url http://www.sciencedirect.com/science/article/pii/S2589004223006946
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