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Characterization of the procera Tomato Mutant Shows Novel Functions of the SlDELLA Protein in the Control of Flower Morphology, Cell Division and Expansion, and the Auxin-Signaling Pathway during Fruit-Set and Development

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Characterization of the procera Tomato Mutant Shows Novel Functions of the SlDELLA Protein in the Control of Flower Morphology, Cell Division and Expansion, and the Auxin-Signaling Pathway during Fruit-Set and Development

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dc.contributor.author Carrera Bergua, Esther es_ES
dc.contributor.author Ruiz Rivero, Omar José es_ES
dc.contributor.author PERES, LÁZARO EUSTAQUIO es_ES
dc.contributor.author Atarés Huerta, Alejandro es_ES
dc.contributor.author Garcia Martinez, Jose L es_ES
dc.date.accessioned 2017-01-30T08:55:26Z
dc.date.available 2017-01-30T08:55:26Z
dc.date.issued 2012-11
dc.identifier.issn 0032-0889
dc.identifier.uri http://hdl.handle.net/10251/77426
dc.description.abstract Procera (pro) is a tall tomato (Solanum lycopersicum) mutant carrying a point mutation in the GRAS region of the gene encoding SlDELLA, a repressor in the gibberellin (GA) signaling pathway. Consistent with the SlDELLA loss of function, pro plants display a GA-constitutive response phenotype, mimicking wild-type plants treated with GA(3). The ovaries from both nonemasculated and emasculated pro flowers had very strong parthenocarpic capacity, associated with enhanced growth of preanthesis ovaries due to more and larger cells. pro parthenocarpy is facultative because seeded fruits were obtained by manual pollination. Most pro pistils had exserted stigmas, thus preventing self-pollination, similar to wild-type pistils treated with GA(3) or auxins. However, Style2.1, a gene responsible for long styles in noncultivated tomato, may not control the enhanced style elongation of pro pistils, because its expression was not higher in pro styles and did not increase upon GA(3) application. Interestingly, a high percentage of pro flowers had meristic alterations, with one additional petal, sepal, stamen, and carpel at each of the four whorls, respectively, thus unveiling a role of SlDELLA in flower organ development. Microarray analysis showed significant changes in the transcriptome of preanthesis pro ovaries compared with the wild type, indicating that the molecular mechanism underlying the parthenocarpic capacity of pro is complex and that it is mainly associated with changes in the expression of genes involved in GA and auxin pathways. Interestingly, it was found that GA activity modulates the expression of cell division and expansion genes and an auxin signaling gene (tomato AUXIN RESPONSE FACTOR7) during fruit-set es_ES
dc.description.sponsorship This work was supported by the Ministerio de Educacion y Ciencia of Spain (grant no. BIO2009-07968) and by a Ramon y Cajal grant to E.C. en_EN
dc.language Inglés es_ES
dc.publisher American Society of Plant Biologists es_ES
dc.relation Ministerio de Educacion y Ciencia of Spain BIO2009-07968 es_ES
dc.relation Ramon y Cajal grant es_ES
dc.relation.ispartof Plant Physiology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject CV MICRO-TOM es_ES
dc.subject GIBBERELLIN METABOLISM es_ES
dc.subject LYCOPERSICON-ESCULENTUM es_ES
dc.subject MOLECULAR-MECHANISM es_ES
dc.subject LEAF MORPHOGENESIS es_ES
dc.subject STEM GROWTH es_ES
dc.subject PRO-GENE es_ES
dc.subject ARABIDOPSIS es_ES
dc.subject PARTHENOCARPY es_ES
dc.subject EXPRESSION es_ES
dc.subject.classification GENETICA es_ES
dc.title Characterization of the procera Tomato Mutant Shows Novel Functions of the SlDELLA Protein in the Control of Flower Morphology, Cell Division and Expansion, and the Auxin-Signaling Pathway during Fruit-Set and Development es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1104/pp.112.204552
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.description.bibliographicCitation Carrera Bergua, E.; Ruiz Rivero, OJ.; Peres, LE.; Atarés Huerta, A.; Garcia Martinez, JL. (2012). Characterization of the procera Tomato Mutant Shows Novel Functions of the SlDELLA Protein in the Control of Flower Morphology, Cell Division and Expansion, and the Auxin-Signaling Pathway during Fruit-Set and Development. Plant Physiology. 160(3):1581-1596. doi:10.1104/pp.112.204552 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion https://dx.doi.org/10.1104/pp.112.204552 es_ES
dc.description.upvformatpinicio 1581 es_ES
dc.description.upvformatpfin 1596 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 160 es_ES
dc.description.issue 3 es_ES
dc.relation.senia 231282 es_ES


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