Poyatos-Pertinez, S.; Quinet, M.; Ortiz-Atienza, A.; Yuste-Lisbona, FJ.; Pons Puig, C.; Gimenez, E.; Angosto, T.... (2016). A Factor Linking Floral Organ Identity and Growth Revealed by Characterization of the Tomato Mutant unfinished flower development (ufd). Frontiers in Plant Science. 7(1648):1-15. https://doi.org/10.3389/fpls.2016.01648
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/80999
Title:
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A Factor Linking Floral Organ Identity and Growth Revealed by Characterization of the Tomato Mutant unfinished flower development (ufd)
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Author:
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Poyatos-Pertinez, Sandra
Quinet, Muriel
Ortiz-Atienza, Ana
Yuste-Lisbona, Fernando J.
Pons Puig, Clara
Gimenez, Estela
Angosto, Trinidad
Granell Richart, Antonio
Capel, Juan
Lozano, Rafael
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes
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Issued date:
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Abstract:
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Floral organogenesis requires coordinated interactions between genes specifying floral organ identity and those regulating growth and size of developing floral organs. With the aim to isolate regulatory genes linking both ...[+]
Floral organogenesis requires coordinated interactions between genes specifying floral organ identity and those regulating growth and size of developing floral organs. With the aim to isolate regulatory genes linking both developmental processes (i.e., floral organ identity and growth) in the tomato model species, a novel mutant altered in the formation of floral organs was further characterized. Under normal growth conditions, floral organ primordia of mutant plants were correctly initiated, however, they were unable to complete their development impeding the formation of mature and fertile flowers. Thus, the growth of floral buds was blocked at an early stage of development; therefore, we named this mutant as unfinished flower development (ufd). Genetic analysis performed in a segregating population of 543 plants showed that the abnormal phenotype was controlled by a single recessive mutation. Global gene expression analysis confirmed that several MADS-box genes regulating floral identity as well as other genes participating in cell division and different hormonal pathways were affected in their expression patterns in ufd mutant plants. Moreover, ufd mutant inflorescences showed higher hormone contents, particularly ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) and strigol compared to wild type. Such results indicate that UFD may have a key function as positive regulator of the development of floral primordia once they have been initiated in the four floral whorls. This function should be performed by affecting the expression of floral organ identity and growth genes, together with hormonal signaling pathways.
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Subjects:
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Flower development
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Organ growth
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Phytohormones
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Transcriptome
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Solanurn lycopersicum L.
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Copyrigths:
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Reconocimiento (by)
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Source:
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Frontiers in Plant Science. (issn:
1664-462X
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DOI:
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10.3389/fpls.2016.01648
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Publisher:
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Frontiers Media
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Publisher version:
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http://dx.doi.org/10.3389/fpls.2016.01648
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Project ID:
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info:eu-repo/grantAgreement/MICINN//BIO2009-11484/ES/Aislamiento Y Caracterizacion Funcional De Un Regulador Clave Del Desarrollo Reproductivo De Tomate/
info:eu-repo/grantAgreement/MINECO//AGL2015-64991-C3-1-R/ES/UGENOMICA FUNCIONAL Y MEJORA GENETICA DE LA PRODUCTIVIDAD DE TOMATE: IMPORTANCIA AGRONOMICA DEL BALANCE DESARROLLO-ESTRES ABIOTICO/
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Thanks:
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This research was supported by the Spanish Ministry of Economy and Competitiveness and the EU European Regional Development Fund (Grants BIO2009-11484 and AGL2015-64991-C3-R-1). We also thank Campus de Excelencia Internacional ...[+]
This research was supported by the Spanish Ministry of Economy and Competitiveness and the EU European Regional Development Fund (Grants BIO2009-11484 and AGL2015-64991-C3-R-1). We also thank Campus de Excelencia Internacional Agroalimentario (CeiA3) for providing financial support. AO is a recipient of a PhD fellowship from the Ministerio de Ciencia e Innovation of Spain (BIO2009-11484).
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Type:
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Artículo
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