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Intense light unleashes male–male courtship behaviour in wild-type Drosophila

Drosophila courtship studies have elucidated several principles of the neurogenetic organization of complex behaviour. Through an integration across sensory modalities, males perform stereotypic patterns of chasing, courtship song production and copulation attempts. Here we report a serendipitous fi...

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Autores principales: Ueda, Atsushi, Berg, Abigayle, Khan, Tashmit, Ruzicka, Madeleine, Li, Shuwen, Cramer, Ellyn, Iyengar, Atulya, Wu, Chun-Fang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10353890/
https://www.ncbi.nlm.nih.gov/pubmed/37463658
http://dx.doi.org/10.1098/rsob.220233
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author Ueda, Atsushi
Berg, Abigayle
Khan, Tashmit
Ruzicka, Madeleine
Li, Shuwen
Cramer, Ellyn
Iyengar, Atulya
Wu, Chun-Fang
author_facet Ueda, Atsushi
Berg, Abigayle
Khan, Tashmit
Ruzicka, Madeleine
Li, Shuwen
Cramer, Ellyn
Iyengar, Atulya
Wu, Chun-Fang
author_sort Ueda, Atsushi
collection PubMed
description Drosophila courtship studies have elucidated several principles of the neurogenetic organization of complex behaviour. Through an integration across sensory modalities, males perform stereotypic patterns of chasing, courtship song production and copulation attempts. Here we report a serendipitous finding that intense light not only enhances courtship toward female targets but also triggers unexpected courtship behaviours among male flies. Strikingly, in wild-type male-only chambers, we observed extreme behavioural manifestations, such as ‘chaining’ and ‘wheeling’, resembling previously reported male–male courtship behaviours in fruitless mutants and in transformants with ectopic mini-white(+) overexpression. This male–male courtship was greatly diminished in a variety of visual system mutants, including disrupted phototransduction (norpA), eliminated eye-colour screening pigments (white), or deletion of the R7 photoreceptor cells (sevenless). However, light-induced courtship was unhampered in wing-cut flies, despite their inability to produce courtship song, a major acoustic signal during courtship. Unexpectedly the olfactory mutants orco and sbl displayed unrestrained male–male courtship. Particularly, orco males attained maximum courtship scores under either dim or intense light conditions. Together, our observations support the notion that the innate male courtship behaviour is restrained by olfactory cues under normal conditions but can be unleashed by strong visual stimulation in Drosophila.
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spelling pubmed-103538902023-07-19 Intense light unleashes male–male courtship behaviour in wild-type Drosophila Ueda, Atsushi Berg, Abigayle Khan, Tashmit Ruzicka, Madeleine Li, Shuwen Cramer, Ellyn Iyengar, Atulya Wu, Chun-Fang Open Biol Research Drosophila courtship studies have elucidated several principles of the neurogenetic organization of complex behaviour. Through an integration across sensory modalities, males perform stereotypic patterns of chasing, courtship song production and copulation attempts. Here we report a serendipitous finding that intense light not only enhances courtship toward female targets but also triggers unexpected courtship behaviours among male flies. Strikingly, in wild-type male-only chambers, we observed extreme behavioural manifestations, such as ‘chaining’ and ‘wheeling’, resembling previously reported male–male courtship behaviours in fruitless mutants and in transformants with ectopic mini-white(+) overexpression. This male–male courtship was greatly diminished in a variety of visual system mutants, including disrupted phototransduction (norpA), eliminated eye-colour screening pigments (white), or deletion of the R7 photoreceptor cells (sevenless). However, light-induced courtship was unhampered in wing-cut flies, despite their inability to produce courtship song, a major acoustic signal during courtship. Unexpectedly the olfactory mutants orco and sbl displayed unrestrained male–male courtship. Particularly, orco males attained maximum courtship scores under either dim or intense light conditions. Together, our observations support the notion that the innate male courtship behaviour is restrained by olfactory cues under normal conditions but can be unleashed by strong visual stimulation in Drosophila. The Royal Society 2023-07-19 /pmc/articles/PMC10353890/ /pubmed/37463658 http://dx.doi.org/10.1098/rsob.220233 Text en © 2023 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Research
Ueda, Atsushi
Berg, Abigayle
Khan, Tashmit
Ruzicka, Madeleine
Li, Shuwen
Cramer, Ellyn
Iyengar, Atulya
Wu, Chun-Fang
Intense light unleashes male–male courtship behaviour in wild-type Drosophila
title Intense light unleashes male–male courtship behaviour in wild-type Drosophila
title_full Intense light unleashes male–male courtship behaviour in wild-type Drosophila
title_fullStr Intense light unleashes male–male courtship behaviour in wild-type Drosophila
title_full_unstemmed Intense light unleashes male–male courtship behaviour in wild-type Drosophila
title_short Intense light unleashes male–male courtship behaviour in wild-type Drosophila
title_sort intense light unleashes male–male courtship behaviour in wild-type drosophila
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10353890/
https://www.ncbi.nlm.nih.gov/pubmed/37463658
http://dx.doi.org/10.1098/rsob.220233
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