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The peach HECATE3-like gene FLESHY plays a double role during fruit development.

hal.structure.identifierDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE)
dc.contributor.authorBOTTON, Alessandro
hal.structure.identifierDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE)
dc.contributor.authorRASORI, Angela
hal.structure.identifierDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE)
dc.contributor.authorZILIOTTO, Fiorenza
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOING, Annick
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMAUCOURT, Mickael
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBERNILLON, Stéphane
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDEBORDE, Catherine
hal.structure.identifierDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE)
dc.contributor.authorPETTERLE, Anna
hal.structure.identifierDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE)
dc.contributor.authorVAROTTO, Serena
hal.structure.identifierDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE)
dc.contributor.authorBONGHI, Claudio
dc.date.issued2016
dc.identifier.issn0167-4412
dc.description.abstractEnTight control of cell/tissue identity is essential for a correct and functional organ patterning, an important component of overall fruit development and eventual maturation and ripening. Despite many investigations regarding the molecular determinants of cell identity in fruits of different species, a useful model able to depict the regulatory networks governing this relevant part of fruit development is still missing. Here we described the peach fruit as a system to link the phenotype of a slow ripening (SR) selection to an altered transcriptional regulation of genes involved in determination of mesocarp cell identity providing insight toward molecular regulation of fruit tissue formation. Morpho-anatomical observations and metabolomics analyses performed during fruit development on the reference cultivar Fantasia, compared to SR, revealed that the mesocarp of SR maintained typical immaturity traits (e.g. small cell size, high amino acid contents and reduced sucrose) throughout development, along with a strong alteration of phenylpropanoid contents, resulting in accumulation of phenylalanine and lignin. These findings suggest that the SR mesocarp is phenotypically similar to a lignifying endocarp. To test this hypothesis, the expression of genes putatively involved in determination of drupe tissues identity was assessed. Among these, the peach HEC3-like gene FLESHY showed a strongly altered expression profile consistent with pit hardening and fruit ripening, generated at a post-transcriptional level. A double function for FLESHY in channelling the phenylpropanoid pathway to either lignin or flavour/aroma is suggested, along with its possible role in triggering auxin-ethylene cross talk at the start of ripening.
dc.language.isoen
dc.publisherSpringer Verlag (Germany)
dc.subjectMetabolomics
dc.subjectPost-transcriptional regulation
dc.subject.enFruit patterning
dc.subject.enMesocarp identity
dc.subject.enMicroRNA
dc.subject.enPhenylpropanoid pathway
dc.title.enThe peach HECATE3-like gene FLESHY plays a double role during fruit development.
dc.typeArticle de revue
dc.identifier.doi10.1007/s11103-016-0445-z
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalPlant Molecular Biology
bordeaux.page97-114
bordeaux.volume91
bordeaux.issue1-2
bordeaux.peerReviewedoui
hal.identifierhal-02636594
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02636594v1
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