Drought stress has transgenerational effects on seeds and seedlings in winter oilseed rape (Brassica napus L.)

dc.contributor.authorHatzig, Sarah V.
dc.contributor.authorNuppenau, Jan-Niklas
dc.contributor.authorSnowdon, Ron J.
dc.contributor.authorSchießl, Sarah V.
dc.date.accessioned2022-11-18T09:54:48Z
dc.date.available2020-07-01T09:52:04Z
dc.date.available2022-11-18T09:54:48Z
dc.date.issued2018
dc.description.abstractBACKGROUND: Drought stress has a negative effect on both seed yield and seed quality in Brassica napus (oilseed rape, canola). Here we show that while drought impairs the maternal plant performance, it also increases the vigour of progeny of stressed maternal plants. We investigated the transgenerational influence of abiotic stress by detailed analysis of yield, seed quality, and seedling performance on a growth-related and metabolic level. Seeds of eight diverse winter oilseed rape genotypes were generated under well-watered and drought stress conditions under controlled-environment conditions in large plant containers.RESULTS: We found a decrease in seed quality in seeds derived from mother plants that were exposed to drought stress. At the same time, the seeds that developed under stress conditions showed higher seedling vigour compared to non-stressed controls.This effect on seed quality and seedling vigour was found to be independent of maternal plant yield performance.CONCLUSIONS: Drought stress has a positive transgenerational effect on seedling vigour. Three potential causes for stress-induced improvement of seedling vigour are discussed: (1) Heterotic effects caused by a tendency towards a higher outcrossing rate in response to stress; (2) an altered reservoir of seed storage metabolites to which the seedling resorts during early growth, and (3) inter-generational stress memory, formed by stress-induced changes in the epigenome of the seedling.en
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:hebis:26-opus-152435
dc.identifier.urihttps://jlupub.ub.uni-giessen.de//handle/jlupub/9533
dc.identifier.urihttp://dx.doi.org/10.22029/jlupub-8921
dc.language.isoende_DE
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectcanolaen
dc.subjectrapeseeden
dc.subjectdrought stressen
dc.subjectseed germinationen
dc.subjectseedling vigouren
dc.subject.ddcddc:630de_DE
dc.titleDrought stress has transgenerational effects on seeds and seedlings in winter oilseed rape (Brassica napus L.)en
dc.typearticlede_DE
local.affiliationFB 09 - Agrarwissenschaften, Ökotrophologie und Umweltmanagementde_DE
local.opus.fachgebietAgrarwissenschaften und Umweltmanagementde_DE
local.opus.id15243
local.opus.instituteDepartment of Plant Breedingde_DE
local.source.freetextBMC Plant Biology 18:297de_DE
local.source.urihttps://doi.org/10.1186/s12870-018-1531-y

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