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GABA transmission from mAL interneurons regulates aggression in Drosophila males
Aggression is known to be regulated by pheromonal information in many species. But how central brain neurons processing this information modulate aggression is poorly understood. Using the fruit fly model of Drosophila melanogaster, we systematically characterize the role of a group of sexually dimo...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8812560/ https://www.ncbi.nlm.nih.gov/pubmed/35082150 http://dx.doi.org/10.1073/pnas.2117101119 |
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author | Sengupta, Saheli Chan, Yick-Bun Palavicino-Maggio, Caroline B. Kravitz, Edward A. |
author_facet | Sengupta, Saheli Chan, Yick-Bun Palavicino-Maggio, Caroline B. Kravitz, Edward A. |
author_sort | Sengupta, Saheli |
collection | PubMed |
description | Aggression is known to be regulated by pheromonal information in many species. But how central brain neurons processing this information modulate aggression is poorly understood. Using the fruit fly model of Drosophila melanogaster, we systematically characterize the role of a group of sexually dimorphic GABAergic central brain neurons, popularly known as mAL, in aggression regulation. The mAL neurons are known to be activated by male and female pheromones. In this report, we show that mAL activation robustly increases aggression, whereas its inactivation decreases aggression and increases intermale courtship, a behavior considered reciprocal to aggression. GABA neurotransmission from mAL is crucial for this behavior regulation. Exploiting the genetic toolkit of the fruit fly model, we also find a small group of approximately three to five GABA(+) central brain neurons with anatomical similarities to mAL. Activation of the mAL resembling group of neurons is necessary for increasing intermale aggression. Overall, our findings demonstrate how changes in activity of GABA(+ )central brain neurons processing pheromonal information, such as mAL in Drosophila melanogaster, directly modulate the social behavior of aggression in male–male pairings. |
format | Online Article Text |
id | pubmed-8812560 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-88125602022-07-26 GABA transmission from mAL interneurons regulates aggression in Drosophila males Sengupta, Saheli Chan, Yick-Bun Palavicino-Maggio, Caroline B. Kravitz, Edward A. Proc Natl Acad Sci U S A Biological Sciences Aggression is known to be regulated by pheromonal information in many species. But how central brain neurons processing this information modulate aggression is poorly understood. Using the fruit fly model of Drosophila melanogaster, we systematically characterize the role of a group of sexually dimorphic GABAergic central brain neurons, popularly known as mAL, in aggression regulation. The mAL neurons are known to be activated by male and female pheromones. In this report, we show that mAL activation robustly increases aggression, whereas its inactivation decreases aggression and increases intermale courtship, a behavior considered reciprocal to aggression. GABA neurotransmission from mAL is crucial for this behavior regulation. Exploiting the genetic toolkit of the fruit fly model, we also find a small group of approximately three to five GABA(+) central brain neurons with anatomical similarities to mAL. Activation of the mAL resembling group of neurons is necessary for increasing intermale aggression. Overall, our findings demonstrate how changes in activity of GABA(+ )central brain neurons processing pheromonal information, such as mAL in Drosophila melanogaster, directly modulate the social behavior of aggression in male–male pairings. National Academy of Sciences 2022-01-26 2022-02-01 /pmc/articles/PMC8812560/ /pubmed/35082150 http://dx.doi.org/10.1073/pnas.2117101119 Text en Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Biological Sciences Sengupta, Saheli Chan, Yick-Bun Palavicino-Maggio, Caroline B. Kravitz, Edward A. GABA transmission from mAL interneurons regulates aggression in Drosophila males |
title | GABA transmission from mAL interneurons regulates aggression in Drosophila males |
title_full | GABA transmission from mAL interneurons regulates aggression in Drosophila males |
title_fullStr | GABA transmission from mAL interneurons regulates aggression in Drosophila males |
title_full_unstemmed | GABA transmission from mAL interneurons regulates aggression in Drosophila males |
title_short | GABA transmission from mAL interneurons regulates aggression in Drosophila males |
title_sort | gaba transmission from mal interneurons regulates aggression in drosophila males |
topic | Biological Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8812560/ https://www.ncbi.nlm.nih.gov/pubmed/35082150 http://dx.doi.org/10.1073/pnas.2117101119 |
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