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Different wheat loci are associated to heritable free asparagine content in grain grown under different water and nitrogen availability

hal.structure.identifierGénétique Diversité et Ecophysiologie des Céréales [GDEC]
hal.structure.identifierAgroParisTech
dc.contributor.authorLAVOIGNAT, Mélanie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierPlateforme Bordeaux Metabolome
dc.contributor.authorCASSAN, Cédric
hal.structure.identifierUniversité de Bordeaux [UB]
hal.structure.identifierInstitut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement [INRAE]
hal.structure.identifierMetaboHUB-Bordeaux
hal.structure.identifierMetaboHUB
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierPlateforme Bordeaux Metabolome
dc.contributor.authorPÉTRIACQ, Pierre
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierPlateforme Bordeaux Metabolome
dc.contributor.authorGIBON, Yves
hal.structure.identifierDomaine expérimental de Brunehaut [LILL MONS UE]
dc.contributor.authorHEUMEZ, Emmanuel
hal.structure.identifierLimagrain Europe [Verneuil l'Etang]
dc.contributor.authorDUQUE, Céline
hal.structure.identifierKWS Momont SAS
dc.contributor.authorMOMONT, Philippe
hal.structure.identifierGénétique Quantitative et Evolution - Le Moulon (Génétique Végétale) [GQE-Le Moulon]
dc.contributor.authorRINCENT, Renaud
hal.structure.identifierGénétique Diversité et Ecophysiologie des Céréales [GDEC]
dc.contributor.authorBLANCON, Justin
hal.structure.identifierGénétique Diversité et Ecophysiologie des Céréales [GDEC]
dc.contributor.authorRAVEL, Catherine
hal.structure.identifierGénétique Diversité et Ecophysiologie des Céréales [GDEC]
dc.contributor.authorLE GOUIS, Jacques
dc.date.accessioned2024-04-11T10:05:57Z
dc.date.available2024-04-11T10:05:57Z
dc.date.issued2024-02-09
dc.identifier.issn0040-5752
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197539
dc.description.abstractEnThe amount of free asparagine in grain of a wheat genotype determines its potential to form harmful acrylamide in derivative food products. Here, we explored the variation in the free asparagine, aspartate, glutamine and glutamate contents of 485 accessions refecting wheat worldwide diversity to defne the genetic architecture governing the accumulation of these amino acids in grain. Accessions were grown under high and low nitrogen availability and in water-defcient and well-watered conditions, and plant and grain phenotypes were measured. Free amino acid contents of grain varied from 0.01 to 1.02 mg g−1 among genotypes in a highly heritable way that did not correlate strongly with grain yield, protein content, specifc weight, thousand-kernel weight or heading date. Mean free asparagine content was 4% higher under high nitrogen and 3% higher in water-defcient conditions. After genotyping the accessions, single-locus and multi-locus genome-wide association study models were used to identify several QTLs for free asparagine content located on nine chromosomes. Each QTL was associated with a single amino acid and growing environment, and none of the QTLs colocalised with genes known to be involved in the corresponding amino acid metabolism. This suggests that free asparagine content is controlled by several loci with minor efects interacting with the environment. We conclude that breeding for reduced asparagine content is feasible, but should be frmly based on multi-environment feld trials. Key message: Diferent wheat QTLs were associated to the free asparagine content of grain grown in four diferent conditions. Environmental efects are a key factor when selecting for low acrylamide-forming potential
dc.language.isoen
dc.publisherSpringer Verlag
dc.title.enDifferent wheat loci are associated to heritable free asparagine content in grain grown under different water and nitrogen availability
dc.typeArticle de revue
dc.identifier.doi10.1007/s00122-024-04551-x
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalTAG Theoretical and Applied Genetics
bordeaux.page46
bordeaux.volume137
bordeaux.hal.laboratoriesBiologie du Fruit & Pathologie (BFP) - UMR 1332*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04461297
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04461297v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=TAG%20Theoretical%20and%20Applied%20Genetics&rft.date=2024-02-09&rft.volume=137&rft.issue=2&rft.spage=46&rft.epage=46&rft.eissn=0040-5752&rft.issn=0040-5752&rft.au=LAVOIGNAT,%20M%C3%A9lanie&CASSAN,%20C%C3%A9dric&P%C3%89TRIACQ,%20Pierre&GIBON,%20Yves&HEUMEZ,%20Emmanuel&rft.genre=article


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