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Extensive variation in drought-induced gene expression changes between loblolly pine genotypes

hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorLI, Jingjia
hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorWEST, Jason
hal.structure.identifierUniversity of Connecticut [UCONN]
dc.contributor.authorHART, Alexander
hal.structure.identifierUniversity of Connecticut [UCONN]
dc.contributor.authorWEGRZYN, Jill
hal.structure.identifierFlorida International University [Miami] [FIU]
dc.contributor.authorSMITH, Matthew
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorDOMEC, Jean-Christophe
hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorLOOPSTRA, Carol
hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorCASOLA, Claudio
dc.date.accessioned2024-04-08T11:50:50Z
dc.date.available2024-04-08T11:50:50Z
dc.date.issued2021-05-31
dc.identifier.issn1664-8021
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195406
dc.description.abstractEnDrought response is coordinated through expression changes in a large suite of genes. Interspecific variation in this response is common and associated with drought-tolerant and -sensitive genotypes. The extent to which different genetic networks orchestrate the adjustments to water deficit in tolerant and sensitive genotypes has not been fully elucidated, particularly in non-model or woody plants. Differential expression analysis via RNA-seq was evaluated in root tissue exposed to simulated drought conditions in two loblolly pine ( Pinus taeda L.) clones with contrasting tolerance to drought. Loblolly pine is the prevalent conifer in southeastern U.S. and a major commercial forestry species worldwide. Significant changes in gene expression levels were found in more than 4,000 transcripts [drought-related transcripts (DRTs)]. Genotype by environment (GxE) interactions were prevalent, suggesting that different cohorts of genes are influenced by drought conditions in the tolerant vs. sensitive genotypes. Functional annotation categories and metabolic pathways associated with DRTs showed higher levels of overlap between clones, with the notable exception of GO categories in upregulated DRTs. Conversely, both differentially expressed transcription factors (TFs) and TF families were largely different between clones. Our results indicate that the response of a drought-tolerant loblolly pine genotype vs. a sensitive genotype to water limitation is remarkably different on a gene-by-gene level, although it involves similar genetic networks. Upregulated transcripts under drought conditions represent the most diverging component between genotypes, which might depend on the activation and repression of substantially different groups of TFs.
dc.language.isoen
dc.publisherFrontiers Media
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.endrought tolerance
dc.subject.enPinus taeda
dc.subject.enRNA-seq
dc.subject.enGxE
dc.subject.endifferential gene expression
dc.title.enExtensive variation in drought-induced gene expression changes between loblolly pine genotypes
dc.typeArticle de revue
dc.identifier.doi10.3389/fgene.2021.661440
dc.subject.halSciences de l'environnement
bordeaux.journalFrontiers in Genetics
bordeaux.page1-15
bordeaux.volume12
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03300296
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03300296v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Genetics&rft.date=2021-05-31&rft.volume=12&rft.spage=1-15&rft.epage=1-15&rft.eissn=1664-8021&rft.issn=1664-8021&rft.au=LI,%20Jingjia&WEST,%20Jason&HART,%20Alexander&WEGRZYN,%20Jill&SMITH,%20Matthew&rft.genre=article


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