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At-MINI ZINC FINGER2 and Sl-INHIBITOR OF MERISTEM ACTIVITY, a Conserved Missing Link in the Regulation of Floral Meristem Termination in Arabidopsis and Tomato.

hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBOLLIER, Norbert
hal.structure.identifierUniversity of Potsdam = Universität Potsdam
dc.contributor.authorSICARD, Adrien
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorLEBLOND, Julie
hal.structure.identifierInstitut des Sciences des Plantes de Paris-Saclay [IPS2 (UMR_9213 / UMR_1403)]
dc.contributor.authorLATRASSE, David
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGONZALEZ, Nathalie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGEVAUDANT, Frederic
hal.structure.identifierInstitut des Sciences des Plantes de Paris-Saclay [IPS2 (UMR_9213 / UMR_1403)]
dc.contributor.authorBENHAMED, Moussa
hal.structure.identifierInstitut des Sciences des Plantes de Paris-Saclay [IPS2 (UMR_9213 / UMR_1403)]
dc.contributor.authorRAYNAUD, Cécile
hal.structure.identifierUniversity of Potsdam = Universität Potsdam
dc.contributor.authorLENHARD, Michael
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorCHEVALIER, Christian
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorHERNOULD, Michel
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDELMAS, Frédéric
dc.date.issued2018
dc.identifier.issn1040-4651
dc.description.abstractEnIn angiosperms, the gynoecium is the last structure to develop within the flower due to the determinate fate of floral meristem (FM) stem cells. The maintenance of stem cell activity before its arrest at the stage called FM termination affects the number of carpels that develop. The necessary inhibition at this stage of WUSCHEL (WUS), which is responsible for stem cell maintenance, involves a two-step mechanism. Direct repression mediated by the MADS-domain transcription factor AGAMOUS (AG), followed by indirect repression requiring the C2H2 zinc-finger protein KNUCKLES (KNU), allow for the complete termination of floral stem cell activity. Here, we show that Arabidopsis thaliana MINI ZINC FINGER2 (AtMIF2) and its homolog in tomato (Solanum lycopersicum), INHIBITOR OF MERISTEM ACTIVITY (SlIMA), participate in the FM termination process by functioning as adaptor proteins. AtMIF2 and SlIMA recruit AtKNU and SlKNU, respectively, to form a transcriptional repressor complex together with TOPLESS (TPL) and HISTONE DEACETYLASE19 (HDA19). AtMIF2 and SlIMA bind to the WUS and SlWUS loci in the respective plants, leading to their repression. These results provide important insights into the molecular mechanisms governing (FM) termination and highlight the essential role of AtMIF2/SlIMA during this developmental step, which determines carpel number and therefore fruit size.
dc.language.isoen
dc.publisherAmerican Society of Plant Biologists (ASPB)
dc.title.enAt-MINI ZINC FINGER2 and Sl-INHIBITOR OF MERISTEM ACTIVITY, a Conserved Missing Link in the Regulation of Floral Meristem Termination in Arabidopsis and Tomato.
dc.typeArticle de revue
dc.identifier.doi10.1105/tpc.17.00653
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalThe Plant cell
bordeaux.page83-100
bordeaux.volume30
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02625003
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02625003v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Plant%20cell&rft.date=2018&rft.volume=30&rft.issue=1&rft.spage=83-100&rft.epage=83-100&rft.eissn=1040-4651&rft.issn=1040-4651&rft.au=BOLLIER,%20Norbert&SICARD,%20Adrien&LEBLOND,%20Julie&LATRASSE,%20David&GONZALEZ,%20Nathalie&rft.genre=article


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