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Down-regulation of a single auxin efflux transport protein in tomato induces precocious fruit development

hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOUNET, Fabien
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOING, Annick
hal.structure.identifierDepartment of Plant Physiology
dc.contributor.authorKOWALCZYK, Mariusz
dc.contributor.authorROHRMANN, Johannes
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorPETIT, Johann
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGARCIA, Virginie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMAUCOURT, Mickael
dc.contributor.authorYANO, Kentaro
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDEBORDE, Catherine
dc.contributor.authorAOKI, Koh
hal.structure.identifierCentre National de Ressources Génomiques Végétales [CNRGV]
dc.contributor.authorBERGES, Helene
hal.structure.identifierInstituto de Biologia Molecular y Celular de Plantas [IBMCP]
dc.contributor.authorGRANELL, Antonio
dc.contributor.authorFERNIE, Alisdair R.
hal.structure.identifierInstitut Jean-Pierre Bourgin [IJPB]
dc.contributor.authorBELLINI, Catherine
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorROTHAN, Christophe
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorLEMAIRE-CHAMLEY, Martine
dc.date.issued2012
dc.identifier.issn0022-0957
dc.description.abstractEnThe PIN-FORMED (PIN) auxin efflux transport protein family has been well characterized in the model plant Arabidopsis thaliana, where these proteins are crucial for auxin regulation of various aspects of plant development. Recent evidence indicates that PIN proteins may play a role in fruit set and early fruit development in tomato (Solanum lycopersicum), but functional analyses of PIN-silenced plants failed to corroborate this hypothesis. Here it is demonstrated that silencing specifically the tomato SlPIN4 gene, which is predominantly expressed in tomato flower bud and young developing fruit, leads to parthenocarpic fruits due to precocious fruit development before fertilization. This phenotype was associated with only slight modifications of auxin homeostasis at early stages of flower bud development and with minor alterations of ARF and Aux/IAA gene expression. However, microarray transcriptome analysis and large-scale quantitative RT-PCR profiling of transcription factors in developing flower bud and fruit highlighted differentially expressed regulatory genes, which are potential targets for auxin control of fruit set and development in tomato. In conclusion, this work provides clear evidence that the tomato PIN protein SlPIN4 plays a major role in auxin regulation of tomato fruit set, possibly by preventing precocious fruit development in the absence of pollination, and further gives new insights into the target genes involved in fruit set.
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.subject.enAuxin efflux transport protein (PIN)
dc.subject.enCRABS-CLAW
dc.subject.enfruit set
dc.subject.enMADS-BOX
dc.subject.enparthenocarpy
dc.subject.entomato (Solanum lycopersicum)
dc.subject.entranscription factor
dc.title.enDown-regulation of a single auxin efflux transport protein in tomato induces precocious fruit development
dc.typeArticle de revue
dc.identifier.doi10.1093/jxb/ers167
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Botanique
bordeaux.journalJournal of Experimental Botany
bordeaux.page4901-4917
bordeaux.volume63
bordeaux.issue13
bordeaux.peerReviewedoui
hal.identifierhal-01000616
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01000616v1
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