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Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens

Stress can be remembered by plants in a form of stress legacy that can alter future phenotypes of previously stressed plants and even phenotypes of their offspring. DNA methylation belongs among the mechanisms mediating the stress legacy. It is however not known for how long the stress legacy is car...

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Autores principales: Quan, Jiaxin, Münzbergová, Zuzana, Latzel, Vít
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9130644/
https://www.ncbi.nlm.nih.gov/pubmed/35646308
http://dx.doi.org/10.1002/ece3.8959
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author Quan, Jiaxin
Münzbergová, Zuzana
Latzel, Vít
author_facet Quan, Jiaxin
Münzbergová, Zuzana
Latzel, Vít
author_sort Quan, Jiaxin
collection PubMed
description Stress can be remembered by plants in a form of stress legacy that can alter future phenotypes of previously stressed plants and even phenotypes of their offspring. DNA methylation belongs among the mechanisms mediating the stress legacy. It is however not known for how long the stress legacy is carried by plants. If the legacy is long‐lasting, it can become maladaptive in situations when parental–offspring environment do not match. We investigated for how long after the last exposure of a parental plant to drought can the phenotype of its clonal offspring be altered. We grew parental plants of three genotypes of Trifolium repens for five months either in control conditions or in control conditions that were interrupted with intense drought periods applied for two months in four different time slots. We also treated half of the parental plants with a demethylating agent (5‐azacytidine, 5‐azaC) to test for the potential role of DNA methylation in the stress memory. Then, we transplanted parental cuttings (ramets) individually to control environment and allowed them to produce offspring ramets for two months. The drought stress experienced by parents affected phenotypes of offspring ramets. The stress legacy resulted in enhanced number of offspring ramets originating from plants that experienced drought stress even 56 days before their transplantation to the control environment. 5‐azaC altered transgenerational effects on offspring ramets. We confirmed that drought stress can trigger transgenerational effects in T. repens that is very likely mediated by DNA methylation. Most importantly, the stress legacy in parental plants persisted for at least 8 weeks suggesting that the stress legacy can persist in a clonal plant Trifolium repens for relatively long period. We suggest that the stress legacy should be considered in future ecological studies on clonal plants.
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spelling pubmed-91306442022-05-26 Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens Quan, Jiaxin Münzbergová, Zuzana Latzel, Vít Ecol Evol Research Articles Stress can be remembered by plants in a form of stress legacy that can alter future phenotypes of previously stressed plants and even phenotypes of their offspring. DNA methylation belongs among the mechanisms mediating the stress legacy. It is however not known for how long the stress legacy is carried by plants. If the legacy is long‐lasting, it can become maladaptive in situations when parental–offspring environment do not match. We investigated for how long after the last exposure of a parental plant to drought can the phenotype of its clonal offspring be altered. We grew parental plants of three genotypes of Trifolium repens for five months either in control conditions or in control conditions that were interrupted with intense drought periods applied for two months in four different time slots. We also treated half of the parental plants with a demethylating agent (5‐azacytidine, 5‐azaC) to test for the potential role of DNA methylation in the stress memory. Then, we transplanted parental cuttings (ramets) individually to control environment and allowed them to produce offspring ramets for two months. The drought stress experienced by parents affected phenotypes of offspring ramets. The stress legacy resulted in enhanced number of offspring ramets originating from plants that experienced drought stress even 56 days before their transplantation to the control environment. 5‐azaC altered transgenerational effects on offspring ramets. We confirmed that drought stress can trigger transgenerational effects in T. repens that is very likely mediated by DNA methylation. Most importantly, the stress legacy in parental plants persisted for at least 8 weeks suggesting that the stress legacy can persist in a clonal plant Trifolium repens for relatively long period. We suggest that the stress legacy should be considered in future ecological studies on clonal plants. John Wiley and Sons Inc. 2022-05-24 /pmc/articles/PMC9130644/ /pubmed/35646308 http://dx.doi.org/10.1002/ece3.8959 Text en © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. 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 Research Articles
Quan, Jiaxin
Münzbergová, Zuzana
Latzel, Vít
Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens
title Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens
title_full Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens
title_fullStr Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens
title_full_unstemmed Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens
title_short Time dynamics of stress legacy in clonal transgenerational effects: A case study on Trifolium repens
title_sort time dynamics of stress legacy in clonal transgenerational effects: a case study on trifolium repens
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9130644/
https://www.ncbi.nlm.nih.gov/pubmed/35646308
http://dx.doi.org/10.1002/ece3.8959
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