Evolution of sexual size dimorphism in the wing musculature of Drosophila
Male courtship songs in Drosophila are exceedingly diverse across species. While much of this variation is understood to have evolved from changes in the central nervous system, evolutionary transitions in the wing muscles that control the song may have also contributed to song diversity. Here, focu...
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| Format: | Article |
| Language: | English |
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PeerJ Inc.
2020-01-01
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| Online Access: | https://peerj.com/articles/8360.pdf |
| _version_ | 1797421910229778432 |
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| author | Claire B. Tracy Janet Nguyen Rayna Abraham Troy R. Shirangi |
| author_facet | Claire B. Tracy Janet Nguyen Rayna Abraham Troy R. Shirangi |
| author_sort | Claire B. Tracy |
| collection | DOAJ |
| description | Male courtship songs in Drosophila are exceedingly diverse across species. While much of this variation is understood to have evolved from changes in the central nervous system, evolutionary transitions in the wing muscles that control the song may have also contributed to song diversity. Here, focusing on a group of four wing muscles that are known to influence courtship song in Drosophila melanogaster, we investigate the evolutionary history of wing muscle anatomy of males and females from 19 Drosophila species. We find that three of the wing muscles have evolved sexual dimorphisms in size multiple independent times, whereas one has remained monomorphic in the phylogeny. These data suggest that evolutionary changes in wing muscle anatomy may have contributed to species variation in sexually dimorphic wing-based behaviors, such as courtship song. Moreover, wing muscles appear to differ in their propensity to evolve size dimorphisms, which may reflect variation in the functional constraints acting upon different wing muscles. |
| first_indexed | 2024-03-09T07:24:18Z |
| format | Article |
| id | doaj.art-b39f774e59db45d386b51fad375df417 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T07:24:18Z |
| publishDate | 2020-01-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-b39f774e59db45d386b51fad375df4172023-12-03T07:09:15ZengPeerJ Inc.PeerJ2167-83592020-01-018e836010.7717/peerj.8360Evolution of sexual size dimorphism in the wing musculature of DrosophilaClaire B. Tracy0Janet Nguyen1Rayna Abraham2Troy R. Shirangi3Department of Biology, Villanova University, Villanova, PA, United States of AmericaDepartment of Biology, Villanova University, Villanova, PA, United States of AmericaDepartment of Biology, Villanova University, Villanova, PA, United States of AmericaDepartment of Biology, Villanova University, Villanova, PA, United States of AmericaMale courtship songs in Drosophila are exceedingly diverse across species. While much of this variation is understood to have evolved from changes in the central nervous system, evolutionary transitions in the wing muscles that control the song may have also contributed to song diversity. Here, focusing on a group of four wing muscles that are known to influence courtship song in Drosophila melanogaster, we investigate the evolutionary history of wing muscle anatomy of males and females from 19 Drosophila species. We find that three of the wing muscles have evolved sexual dimorphisms in size multiple independent times, whereas one has remained monomorphic in the phylogeny. These data suggest that evolutionary changes in wing muscle anatomy may have contributed to species variation in sexually dimorphic wing-based behaviors, such as courtship song. Moreover, wing muscles appear to differ in their propensity to evolve size dimorphisms, which may reflect variation in the functional constraints acting upon different wing muscles.https://peerj.com/articles/8360.pdfDrosophilaWing muscleSexual differentiationEvolutionCourtship |
| spellingShingle | Claire B. Tracy Janet Nguyen Rayna Abraham Troy R. Shirangi Evolution of sexual size dimorphism in the wing musculature of Drosophila PeerJ Drosophila Wing muscle Sexual differentiation Evolution Courtship |
| title | Evolution of sexual size dimorphism in the wing musculature of Drosophila |
| title_full | Evolution of sexual size dimorphism in the wing musculature of Drosophila |
| title_fullStr | Evolution of sexual size dimorphism in the wing musculature of Drosophila |
| title_full_unstemmed | Evolution of sexual size dimorphism in the wing musculature of Drosophila |
| title_short | Evolution of sexual size dimorphism in the wing musculature of Drosophila |
| title_sort | evolution of sexual size dimorphism in the wing musculature of drosophila |
| topic | Drosophila Wing muscle Sexual differentiation Evolution Courtship |
| url | https://peerj.com/articles/8360.pdf |
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