Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.

Plants that can adapt their phenotype may be more likely to survive changing environmental conditions. Heritable epigenetic variation could provide a way to rapidly adapt to such changes. Here we tested whether environmental stress induces heritable, potentially adaptive phenotypic changes independe...

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Autores principales:	Léonie Suter, Alex Widmer
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b78dc564a85746cfa954bd7474e85369
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spelling	oai:doaj.org-article:b78dc564a85746cfa954bd7474e853692021-11-18T07:50:07ZEnvironmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.1932-620310.1371/journal.pone.0060364https://doaj.org/article/b78dc564a85746cfa954bd7474e853692013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23585834/?tool=EBIhttps://doaj.org/toc/1932-6203Plants that can adapt their phenotype may be more likely to survive changing environmental conditions. Heritable epigenetic variation could provide a way to rapidly adapt to such changes. Here we tested whether environmental stress induces heritable, potentially adaptive phenotypic changes independent of genetic variation over few generations in Arabidopsis thaliana. We grew two accessions (Col-0, Sha-0) of A. thaliana for three generations under salt, heat and control conditions and tested for induced heritable phenotypic changes in the fourth generation (G4) and in reciprocal F1 hybrids generated in generation three. Using these crosses we further tested whether phenotypic changes were maternally or paternally transmitted. In generation five (G5), we assessed whether phenotypic effects persisted over two generations in the absence of stress. We found that exposure to heat stress in previous generations accelerated flowering under G4 control conditions in Sha-0, but heritable effects disappeared in G5 after two generations without stress exposure. Previous exposure to salt stress increased salt tolerance in one of two reciprocal F1 hybrids. Transgenerational effects were maternally and paternally inherited. Lacking genetic variability, maternal and paternal inheritance and reversibility of transgenerational effects together indicate that stress can induce heritable, potentially adaptive phenotypic changes, probably through epigenetic mechanisms. These effects were strongly dependent on plant genotype and may not be a general response to stress in A. thaliana.Léonie SuterAlex WidmerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e60364 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Léonie Suter Alex Widmer Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.
description	Plants that can adapt their phenotype may be more likely to survive changing environmental conditions. Heritable epigenetic variation could provide a way to rapidly adapt to such changes. Here we tested whether environmental stress induces heritable, potentially adaptive phenotypic changes independent of genetic variation over few generations in Arabidopsis thaliana. We grew two accessions (Col-0, Sha-0) of A. thaliana for three generations under salt, heat and control conditions and tested for induced heritable phenotypic changes in the fourth generation (G4) and in reciprocal F1 hybrids generated in generation three. Using these crosses we further tested whether phenotypic changes were maternally or paternally transmitted. In generation five (G5), we assessed whether phenotypic effects persisted over two generations in the absence of stress. We found that exposure to heat stress in previous generations accelerated flowering under G4 control conditions in Sha-0, but heritable effects disappeared in G5 after two generations without stress exposure. Previous exposure to salt stress increased salt tolerance in one of two reciprocal F1 hybrids. Transgenerational effects were maternally and paternally inherited. Lacking genetic variability, maternal and paternal inheritance and reversibility of transgenerational effects together indicate that stress can induce heritable, potentially adaptive phenotypic changes, probably through epigenetic mechanisms. These effects were strongly dependent on plant genotype and may not be a general response to stress in A. thaliana.
format	article
author	Léonie Suter Alex Widmer
author_facet	Léonie Suter Alex Widmer
author_sort	Léonie Suter
title	Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.
title_short	Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.
title_full	Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.
title_fullStr	Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.
title_full_unstemmed	Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.
title_sort	environmental heat and salt stress induce transgenerational phenotypic changes in arabidopsis thaliana.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/b78dc564a85746cfa954bd7474e85369
work_keys_str_mv	AT leoniesuter environmentalheatandsaltstressinducetransgenerationalphenotypicchangesinarabidopsisthaliana AT alexwidmer environmentalheatandsaltstressinducetransgenerationalphenotypicchangesinarabidopsisthaliana
_version_	1718422875854077952

Environmental heat and salt stress induce transgenerational phenotypic changes in Arabidopsis thaliana.

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