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The <em>fleshless</em> mutation: a valuable source to investigate the regulation of pericarp morphogenesis

hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorTORREGROSA, Laurent
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
hal.structure.identifierCommonwealth Scientific and Industrial Research Organisation [Canberra] [CSIRO]
dc.contributor.authorFERNANDEZ, Lucie
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorHOUEL, Cléa
hal.structure.identifierCommonwealth Scientific and Industrial Research Organisation [Canberra] [CSIRO]
dc.contributor.authorCHAÏB, J.
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorRIENTH, Markus
hal.structure.identifierCommonwealth Scientific and Industrial Research Organisation [Canberra] [CSIRO]
dc.contributor.authorMACKENZY, D.
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorLOPEZ, Gerardo
hal.structure.identifierUnité de Recherche Génomique Info [URGI]
dc.contributor.authorADAM-BLONDON, Anne-Francoise
hal.structure.identifierCommonwealth Scientific and Industrial Research Organisation [Canberra] [CSIRO]
dc.contributor.authorROMIEU, C.
dc.contributor.authorZAPATER, J.M.
hal.structure.identifierCommonwealth Scientific and Industrial Research Organisation [Canberra] [CSIRO]
dc.contributor.authorTHOMAS, M.R.
dc.date.issued2013
dc.date.conference2013-04-21
dc.description.abstractEnThe FLESHLESS somatic variation was identified in the grapevine as a chimeric phenotype that develops small fruits with a very little amount of flesh (Fernandez et al., 2006). The lack of flesh development was shown to result from the impairment of both cell division and expansion. Interestingly, the phenotype was found inheritable as a dominant trait, even some phenotypic reversions to the wild-type grapevine berry being observed in the original somatic variant and derived populations. Considering the interest of this phenotypic trait, several experimental approaches were performed to: i) decipher the causal genetic mechanism of the misregulation of the flesh morphogenesis due to flb mutation and ii) identify main genes associated with the fleshless phenotype as potential critical players of early fruit development in the grapevine. Fine mapping using DRCF (Dwarf, Rapid Cycling and Flowering) progenies (Chaib et al., 2010) and gene sequencing identified the insertion of an active MITEs (Miniature Inverted-repeat Transposable Elements) in the promoter of the PISTILLATA-like gene as the original event of the fleshless phenotypic variations. The TE insertion causes specific ectopic activation of a VvPI allele during early fruit development that maintains the expression of floral genes within the fruit. The analysis of transcriptomic patterns induced by the flb mutation into the fruit revealed a set of genes which expression is specific to the transition from flower to young berry development. Some of these genes were functionally characterised, in particular through DRCF genetic transformation. Main outputs of this work will be presented and discussed.
dc.language.isoen
dc.title.enThe <em>fleshless</em> mutation: a valuable source to investigate the regulation of pericarp morphogenesis
dc.typeCommunication dans un congrès
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences du Vivant [q-bio]/Ingénierie des aliments
dc.subject.halSciences de l'ingénieur [physics]/Génie des procédés
bordeaux.countryCL
bordeaux.conference.cityLa Serena
bordeaux.peerReviewedoui
hal.identifierhal-02808845
hal.version1
hal.invitednon
hal.conference.end2013-04-26
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02808845v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.date=2013&amp;rft.au=TORREGROSA,%20Laurent&amp;FERNANDEZ,%20Lucie&amp;HOUEL,%20Cl%C3%A9a&amp;CHA%C3%8FB,%20J.&amp;RIENTH,%20Markus&amp;rft.genre=unknown


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