Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado
The development of an organism is a controlled process, which can be disrupted by genetic or environmental stress. Although fluctuating asymmetry is widely used as an indicator of developmental instability, its effectiveness has been questioned due to the contradictory results produced by this tech...
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| Format: | Article |
| Language: | English |
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Jardim Botânico de Brasília
2021-05-01
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| Series: | Heringeriana |
| Subjects: | |
| Online Access: | https://www.jardimbotanicodf.org/index.php/heringeriana/article/view/917941 |
| _version_ | 1827572947882082304 |
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| author | Luciana Costa Nascimento Francisco Das Chagas Roque Machado Rosana Tidon |
| author_facet | Luciana Costa Nascimento Francisco Das Chagas Roque Machado Rosana Tidon |
| author_sort | Luciana Costa Nascimento |
| collection | DOAJ |
| description |
The development of an organism is a controlled process, which can be disrupted by genetic or environmental stress. Although fluctuating asymmetry is widely used as an indicator of developmental instability, its effectiveness has been questioned due to the contradictory results produced by this technique which, at least in part, probably reflects methodological inappropriateness. Here, we investigated if wing asymmetry of drosophilids increases when they develop during the dry season in the Brazilian savanna, considered a stressful season for these insects. Using protocols designed to avoid methodological problems, we analysed the wings of Zaprionus indianus and three species of the genus Drosophila (D. mercatorum, D. simulans, and D. sturtevanti). There was no significative difference in wing asymmetry in any of the four species between the dry and rainy seasons. The similar wing asymmetry levels between seasons may mean that during the dry season drosophilids are submitted to strong natural selection and the asymmetric individuals have less chance of surviving. Alternatively, environmental drought may not affect the wing symmetry. Although our study added more data to the relationship between asymmetry and stress, this discussion seems to be far from being solved.
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| first_indexed | 2024-03-07T20:00:02Z |
| format | Article |
| id | doaj.art-52ec26f332084b3b802c62a8fe88c3e8 |
| institution | Directory Open Access Journal |
| issn | 1983-6996 2359-165X |
| language | English |
| last_indexed | 2024-03-07T20:00:02Z |
| publishDate | 2021-05-01 |
| publisher | Jardim Botânico de Brasília |
| record_format | Article |
| series | Heringeriana |
| spelling | doaj.art-52ec26f332084b3b802c62a8fe88c3e82024-02-28T10:57:35ZengJardim Botânico de BrasíliaHeringeriana1983-69962359-165X2021-05-0115110.17648/heringeriana.v15i1.917941Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian CerradoLuciana Costa Nascimento0Francisco Das Chagas Roque Machado1Rosana Tidon2Laboratório de Biologia Evolutiva, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, CEP 70.910-90Instituto Federal de Brasília, Campus Recanto das Emas, Recanto das Emas, DF, CEP 70297-400Laboratório de Biologia Evolutiva, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, CEP 70.910-90 The development of an organism is a controlled process, which can be disrupted by genetic or environmental stress. Although fluctuating asymmetry is widely used as an indicator of developmental instability, its effectiveness has been questioned due to the contradictory results produced by this technique which, at least in part, probably reflects methodological inappropriateness. Here, we investigated if wing asymmetry of drosophilids increases when they develop during the dry season in the Brazilian savanna, considered a stressful season for these insects. Using protocols designed to avoid methodological problems, we analysed the wings of Zaprionus indianus and three species of the genus Drosophila (D. mercatorum, D. simulans, and D. sturtevanti). There was no significative difference in wing asymmetry in any of the four species between the dry and rainy seasons. The similar wing asymmetry levels between seasons may mean that during the dry season drosophilids are submitted to strong natural selection and the asymmetric individuals have less chance of surviving. Alternatively, environmental drought may not affect the wing symmetry. Although our study added more data to the relationship between asymmetry and stress, this discussion seems to be far from being solved. https://www.jardimbotanicodf.org/index.php/heringeriana/article/view/917941Brazilenvironmental stressfluctuating asymmetryseasonal variation |
| spellingShingle | Luciana Costa Nascimento Francisco Das Chagas Roque Machado Rosana Tidon Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado Heringeriana Brazil environmental stress fluctuating asymmetry seasonal variation |
| title | Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado |
| title_full | Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado |
| title_fullStr | Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado |
| title_full_unstemmed | Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado |
| title_short | Wing symmetry in wild drosophilids (Insecta, Diptera) is not affected by season in the Brazilian Cerrado |
| title_sort | wing symmetry in wild drosophilids insecta diptera is not affected by season in the brazilian cerrado |
| topic | Brazil environmental stress fluctuating asymmetry seasonal variation |
| url | https://www.jardimbotanicodf.org/index.php/heringeriana/article/view/917941 |
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