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An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation
The growth rate hypothesis (GRH) posits that the relative body phosphorus content of an organism is positively related to somatic growth rate, as protein synthesis, which is necessary for growth, requires P‐rich rRNA. This hypothesis has strong support at the interspecific level. Here, we explore th...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley & Sons, Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10078216/ https://www.ncbi.nlm.nih.gov/pubmed/36054549 http://dx.doi.org/10.1002/ecy.3853 |
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author | Lemmen, Kimberley D. Zhou, Libin Papakostas, Spiros Declerck, Steven A. J. |
author_facet | Lemmen, Kimberley D. Zhou, Libin Papakostas, Spiros Declerck, Steven A. J. |
author_sort | Lemmen, Kimberley D. |
collection | PubMed |
description | The growth rate hypothesis (GRH) posits that the relative body phosphorus content of an organism is positively related to somatic growth rate, as protein synthesis, which is necessary for growth, requires P‐rich rRNA. This hypothesis has strong support at the interspecific level. Here, we explore the use of the GRH to predict microevolutionary responses in consumer body stoichiometry. For this, we subjected populations of the rotifer Brachionus calyciflorus to selection for fast population growth rate (PGR) in P‐rich (HPF) and P‐poor (LPF) food environments. With common garden transplant experiments, we demonstrate that in HP populations evolution toward increased PGR was concomitant with an increase in relative phosphorus content. In contrast, LP populations evolved higher PGR without an increase in relative phosphorus content. We conclude that the GRH has the potential to predict microevolutionary change, but that its application is contingent on the environmental context. Our results highlight the potential of cryptic evolution in determining the performance response of populations to elemental limitation of their food resources. |
format | Online Article Text |
id | pubmed-10078216 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley & Sons, Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-100782162023-04-07 An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation Lemmen, Kimberley D. Zhou, Libin Papakostas, Spiros Declerck, Steven A. J. Ecology Articles The growth rate hypothesis (GRH) posits that the relative body phosphorus content of an organism is positively related to somatic growth rate, as protein synthesis, which is necessary for growth, requires P‐rich rRNA. This hypothesis has strong support at the interspecific level. Here, we explore the use of the GRH to predict microevolutionary responses in consumer body stoichiometry. For this, we subjected populations of the rotifer Brachionus calyciflorus to selection for fast population growth rate (PGR) in P‐rich (HPF) and P‐poor (LPF) food environments. With common garden transplant experiments, we demonstrate that in HP populations evolution toward increased PGR was concomitant with an increase in relative phosphorus content. In contrast, LP populations evolved higher PGR without an increase in relative phosphorus content. We conclude that the GRH has the potential to predict microevolutionary change, but that its application is contingent on the environmental context. Our results highlight the potential of cryptic evolution in determining the performance response of populations to elemental limitation of their food resources. John Wiley & Sons, Inc. 2022-10-23 2023-01 /pmc/articles/PMC10078216/ /pubmed/36054549 http://dx.doi.org/10.1002/ecy.3853 Text en © 2022 The Authors. Ecology published by Wiley Periodicals LLC on behalf of The Ecological Society of America. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Articles Lemmen, Kimberley D. Zhou, Libin Papakostas, Spiros Declerck, Steven A. J. An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
title | An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
title_full | An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
title_fullStr | An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
title_full_unstemmed | An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
title_short | An experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
title_sort | experimental test of the growth rate hypothesis as a predictive framework for microevolutionary adaptation |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10078216/ https://www.ncbi.nlm.nih.gov/pubmed/36054549 http://dx.doi.org/10.1002/ecy.3853 |
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