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Frontloading of stress response genes enhances robustness to environmental change in chimeric corals
BACKGROUND: Chimeras are genetically mixed entities resulting from the fusion of two or more conspecifics. This phenomenon is widely distributed in nature and documented in a variety of animal and plant phyla. In corals, chimerism initiates at early ontogenic states (larvae to young spat) and result...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9316358/ https://www.ncbi.nlm.nih.gov/pubmed/35879753 http://dx.doi.org/10.1186/s12915-022-01371-7 |
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author | Vidal-Dupiol, Jeremie Harscouet, Erwan Shefy, Dor Toulza, Eve Rey, Olivier Allienne, Jean-François Mitta, Guillaume Rinkevich, Baruch |
author_facet | Vidal-Dupiol, Jeremie Harscouet, Erwan Shefy, Dor Toulza, Eve Rey, Olivier Allienne, Jean-François Mitta, Guillaume Rinkevich, Baruch |
author_sort | Vidal-Dupiol, Jeremie |
collection | PubMed |
description | BACKGROUND: Chimeras are genetically mixed entities resulting from the fusion of two or more conspecifics. This phenomenon is widely distributed in nature and documented in a variety of animal and plant phyla. In corals, chimerism initiates at early ontogenic states (larvae to young spat) and results from the fusion between two or more closely settled conspecifics. When compared to genetically homogenous colonies (non-chimeras), the literature has listed ecological and evolutionary benefits for traits at the chimeric state, further positioning coral chimerism as an evolutionary rescue instrument. However, the molecular mechanisms underlying this suggestion remain unknown. RESULTS: To address this question, we developed field monitoring and multi-omics approaches to compare the responses of chimeric and non-chimeric colonies acclimated for 1 year at 10-m depth or exposed to a stressful environmental change (translocation from 10- to 2-m depth for 48h). We showed that chimerism in the stony coral Stylophora pistillata is associated with higher survival over a 1-year period. Transcriptomic analyses showed that chimeras lose transcriptomic plasticity and constitutively express at higher level (frontload) genes responsive to stress. This frontloading may prepare the colony to face at any time environmental stresses which explain its higher robustness. CONCLUSIONS: These results show that chimeras are environmentally robust entities with an enhanced ability to cope with environmental stress. Results further document the potential usefulness of chimeras as a novel reef restoration tool to enhance coral adaptability to environmental change, and confirm that coral chimerism can be an evolutionary rescue instrument. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12915-022-01371-7. |
format | Online Article Text |
id | pubmed-9316358 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-93163582022-07-27 Frontloading of stress response genes enhances robustness to environmental change in chimeric corals Vidal-Dupiol, Jeremie Harscouet, Erwan Shefy, Dor Toulza, Eve Rey, Olivier Allienne, Jean-François Mitta, Guillaume Rinkevich, Baruch BMC Biol Research Article BACKGROUND: Chimeras are genetically mixed entities resulting from the fusion of two or more conspecifics. This phenomenon is widely distributed in nature and documented in a variety of animal and plant phyla. In corals, chimerism initiates at early ontogenic states (larvae to young spat) and results from the fusion between two or more closely settled conspecifics. When compared to genetically homogenous colonies (non-chimeras), the literature has listed ecological and evolutionary benefits for traits at the chimeric state, further positioning coral chimerism as an evolutionary rescue instrument. However, the molecular mechanisms underlying this suggestion remain unknown. RESULTS: To address this question, we developed field monitoring and multi-omics approaches to compare the responses of chimeric and non-chimeric colonies acclimated for 1 year at 10-m depth or exposed to a stressful environmental change (translocation from 10- to 2-m depth for 48h). We showed that chimerism in the stony coral Stylophora pistillata is associated with higher survival over a 1-year period. Transcriptomic analyses showed that chimeras lose transcriptomic plasticity and constitutively express at higher level (frontload) genes responsive to stress. This frontloading may prepare the colony to face at any time environmental stresses which explain its higher robustness. CONCLUSIONS: These results show that chimeras are environmentally robust entities with an enhanced ability to cope with environmental stress. Results further document the potential usefulness of chimeras as a novel reef restoration tool to enhance coral adaptability to environmental change, and confirm that coral chimerism can be an evolutionary rescue instrument. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12915-022-01371-7. BioMed Central 2022-07-26 /pmc/articles/PMC9316358/ /pubmed/35879753 http://dx.doi.org/10.1186/s12915-022-01371-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Article Vidal-Dupiol, Jeremie Harscouet, Erwan Shefy, Dor Toulza, Eve Rey, Olivier Allienne, Jean-François Mitta, Guillaume Rinkevich, Baruch Frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
title | Frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
title_full | Frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
title_fullStr | Frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
title_full_unstemmed | Frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
title_short | Frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
title_sort | frontloading of stress response genes enhances robustness to environmental change in chimeric corals |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9316358/ https://www.ncbi.nlm.nih.gov/pubmed/35879753 http://dx.doi.org/10.1186/s12915-022-01371-7 |
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