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DIGITAL.CSIC
Doctoral thesis . 2010 . Peer-reviewed
Data sources: DIGITAL.CSIC
https://doi.org/10.4995/thesis...
Doctoral thesis . 2015 . Peer-reviewed
Data sources: Crossref
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Estudio transcriptómico y metabolómico del desarrollo partenocárpico del fruto de tomate y aplicaciones biotecnológicas

Authors: Hueso Estornell, Leandro;

Estudio transcriptómico y metabolómico del desarrollo partenocárpico del fruto de tomate y aplicaciones biotecnológicas

Abstract

El objetivo de la primera parte de la tesis fue el de averiguar qué genes están involucrados en el proceso formación del fruto de tomate mediado por hormonas, para ello se realizó un análisis transcriptómico comparativo del desarrollo temprano tanto de frutos fertilizados, como de ovarios inducidos a fructificar mediante tratamiento hormonal. El análisis de los resultados reveló que los transcriptomas presentan las mayores diferencias en los primeros días tras la inducción, probablemente debido a la mayor rapidez de las auxinas en estimular la fructificación. Posteriormente, los transcriptomas se van acercando gradualmente entre ellos con independencia del estímulo hormonal inductor. El estudio reveló que existen elementos que configuran los programas de desarrollo del fruto tanto en una componente general independiente del agente inductor, como en la componente específica de la hormona. Además, en el caso específico de giberelinas, el estudio transcripcional de frutos silenciados en el gen SlDELLA mostró que este represor controla al menos una parte de la respuesta transcripcional a esta hormona en el fruto. Esta respuesta parece incluir una serie de mecanismos de defensa que se activan en los ovarios alrededor de antesis. Por otra parte, el estudio transcriptómico y metabolómico del pericarpo de los frutos inducidos por tratamiento hormonal en fase de maduración reveló que el efecto del tratamiento hormonal inductor afecta la expresión de genes relacionados con la síntesis de etileno y da lugar a frutos con alteraciones importantes en la expresión de genes del metabolismo de azúcares. Además, y con objeto de ampliar el rango de herramientas disponibles para ingeniería genética en frutos, se aprovechó el análisis de micromatrices para identificar genes de expresión específica en el ovario/fruto y se clonaron sus secuencias promotoras.

Country
Spain
Related Organizations
Keywords

Biotecnología, Promotor, Fruto, 2415 - Biología molecula, 241719 - Fisiología vegetal, Fitohormonas, 2403 - Bioquímica, Partenocarpia, Invertasas, Tomate, 241715 - Desarrollo vegetal, BIOQUIMICA Y BIOLOGIA MOLECULAR, Desarrollo del fruto, Invertasa, Gateway

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
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