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Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster
The selective pressures leading to the evolution of Sexual Size Dimorphism (SSD) have been well studied in many organisms, yet, the underlying developmental mechanisms are poorly understood. By generating a complete growth profile by sex in Drosophila melanogaster, we describe the sex-specific patte...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3610704/ https://www.ncbi.nlm.nih.gov/pubmed/23555608 http://dx.doi.org/10.1371/journal.pone.0058936 |
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author | Testa, Nicholas D. Ghosh, Shampa M. Shingleton, Alexander W. |
author_facet | Testa, Nicholas D. Ghosh, Shampa M. Shingleton, Alexander W. |
author_sort | Testa, Nicholas D. |
collection | PubMed |
description | The selective pressures leading to the evolution of Sexual Size Dimorphism (SSD) have been well studied in many organisms, yet, the underlying developmental mechanisms are poorly understood. By generating a complete growth profile by sex in Drosophila melanogaster, we describe the sex-specific pattern of growth responsible for SSD. Growth rate and critical size for pupariation significantly contributed to adult SSD, whereas duration of growth did not. Surprisingly, SSD at peak larval mass was twice that of the uneclosed adult SSD with weight loss between peak larval mass and pupariation playing an important role in generating the final SSD. Our finding that weight loss is an important regulator of SSD adds additional complexity to our understanding of how body size is regulated in different sexes. Collectively, these data allow for the elucidation of the molecular-genetic mechanisms that generate SSD, an important component of understanding how SSD evolves. |
format | Online Article Text |
id | pubmed-3610704 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-36107042013-04-03 Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster Testa, Nicholas D. Ghosh, Shampa M. Shingleton, Alexander W. PLoS One Research Article The selective pressures leading to the evolution of Sexual Size Dimorphism (SSD) have been well studied in many organisms, yet, the underlying developmental mechanisms are poorly understood. By generating a complete growth profile by sex in Drosophila melanogaster, we describe the sex-specific pattern of growth responsible for SSD. Growth rate and critical size for pupariation significantly contributed to adult SSD, whereas duration of growth did not. Surprisingly, SSD at peak larval mass was twice that of the uneclosed adult SSD with weight loss between peak larval mass and pupariation playing an important role in generating the final SSD. Our finding that weight loss is an important regulator of SSD adds additional complexity to our understanding of how body size is regulated in different sexes. Collectively, these data allow for the elucidation of the molecular-genetic mechanisms that generate SSD, an important component of understanding how SSD evolves. Public Library of Science 2013-03-28 /pmc/articles/PMC3610704/ /pubmed/23555608 http://dx.doi.org/10.1371/journal.pone.0058936 Text en © 2013 Testa et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Testa, Nicholas D. Ghosh, Shampa M. Shingleton, Alexander W. Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster |
title | Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster
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title_full | Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster
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title_fullStr | Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster
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title_full_unstemmed | Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster
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title_short | Sex-Specific Weight Loss Mediates Sexual Size Dimorphism in Drosophila melanogaster
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title_sort | sex-specific weight loss mediates sexual size dimorphism in drosophila melanogaster |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3610704/ https://www.ncbi.nlm.nih.gov/pubmed/23555608 http://dx.doi.org/10.1371/journal.pone.0058936 |
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