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Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates
BACKGROUND: Energy (resources) acquired by animals should be allocated towards competing demands, maintenance, growth, reproduction and fat storage. Reproduction has the second lowest priority in energy allocation and only is allowed after meeting the energetic demands for maintenance and growth. Th...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5883405/ https://www.ncbi.nlm.nih.gov/pubmed/29614975 http://dx.doi.org/10.1186/s12862-018-1166-5 |
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author | Zhang, Lin Guo, Kun Zhang, Guang-Zheng Lin, Long-Hui Ji, Xiang |
author_facet | Zhang, Lin Guo, Kun Zhang, Guang-Zheng Lin, Long-Hui Ji, Xiang |
author_sort | Zhang, Lin |
collection | PubMed |
description | BACKGROUND: Energy (resources) acquired by animals should be allocated towards competing demands, maintenance, growth, reproduction and fat storage. Reproduction has the second lowest priority in energy allocation and only is allowed after meeting the energetic demands for maintenance and growth. This hierarchical allocation of energy suggests the hypothesis that species or taxa with high maintenance costs would be less likely to invest more energy in reproduction or to evolve an energetically more expensive mode of reproduction. Here, we used data on standard metabolic rate so far reported for 196 species of squamates to test this hypothesis. RESULTS: We found that maintenance costs were lower in snakes than in lizards, and that the costs were lower in viviparous species than in oviparous species. As snakes generally invest more energy per reproductive episode than lizards, and viviparity is an energetically more expensive mode of reproduction than oviparity, our results are consistent with the hypothesis tested. CONCLUSION: The transition from lizard-like to snake-like body form and the transition from oviparity to viviparity are major evolutionary transitions in vertebrates, which likely alter many aspects of biology of the organisms involved. Our study is the first to demonstrate that evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s12862-018-1166-5) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-5883405 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-58834052018-04-10 Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates Zhang, Lin Guo, Kun Zhang, Guang-Zheng Lin, Long-Hui Ji, Xiang BMC Evol Biol Research Article BACKGROUND: Energy (resources) acquired by animals should be allocated towards competing demands, maintenance, growth, reproduction and fat storage. Reproduction has the second lowest priority in energy allocation and only is allowed after meeting the energetic demands for maintenance and growth. This hierarchical allocation of energy suggests the hypothesis that species or taxa with high maintenance costs would be less likely to invest more energy in reproduction or to evolve an energetically more expensive mode of reproduction. Here, we used data on standard metabolic rate so far reported for 196 species of squamates to test this hypothesis. RESULTS: We found that maintenance costs were lower in snakes than in lizards, and that the costs were lower in viviparous species than in oviparous species. As snakes generally invest more energy per reproductive episode than lizards, and viviparity is an energetically more expensive mode of reproduction than oviparity, our results are consistent with the hypothesis tested. CONCLUSION: The transition from lizard-like to snake-like body form and the transition from oviparity to viviparity are major evolutionary transitions in vertebrates, which likely alter many aspects of biology of the organisms involved. Our study is the first to demonstrate that evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s12862-018-1166-5) contains supplementary material, which is available to authorized users. BioMed Central 2018-04-03 /pmc/articles/PMC5883405/ /pubmed/29614975 http://dx.doi.org/10.1186/s12862-018-1166-5 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Zhang, Lin Guo, Kun Zhang, Guang-Zheng Lin, Long-Hui Ji, Xiang Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
title | Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
title_full | Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
title_fullStr | Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
title_full_unstemmed | Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
title_short | Evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
title_sort | evolutionary transitions in body plan and reproductive mode alter maintenance metabolism in squamates |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5883405/ https://www.ncbi.nlm.nih.gov/pubmed/29614975 http://dx.doi.org/10.1186/s12862-018-1166-5 |
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