Genes expresados en la raíz del olivo cultivado y posible implicación en la transición de fase juvenil a adulto
Archivos
Fecha
2014
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Jaén : Universidad de Jaén
Resumen
[ES] Los procesos de transición entre fases a lo largo del crecimiento de las plantas comprenden los mayores cambios rnorfolóqicos. Conocer los mecanismos génicos que controlan estos cambios de fase sería de gran importancia tanto a nivel científico como económico. En este trabajo nos hemos centrado en la transición de fase juvenil a fase adulta, en la que el árbol adquiere la competencia necesaria para la reproducción y concretamente en las raíces, cuyo papel parece ser decisivo en el proceso. La caracterización del gen JA T, implicado en la transición, reveló la existencia de una familia génica de la que se han descrito diferencialmente tres parálogos con distintos
niveles de expresión, cuya localización parece estar asociada al sistema de transporte y a tejidos en crecimiento. El análisis transcriptómico de la expresión génica diferencial entre raíces juveniles y adultas identificó 16 unigenes que parecen estar directa o indirectamente relacionados con la transición. Además, se ha desarrollado un transcriptoma completo de raíces de olivo con el objetivo de dar respuesta a una serie de condiciones de estrés biótico y abiótico.
[EN] Plants undergo several developmental phases during their life cycle, Transitions between phases are well known in herbaceous, conversely to what happens in woody plants, where their lower growth rate and amplitude of the phases, hinder their study, In the current work, we have centered on the juvenile to adult transition, in which the tree achieves the competence to reproduction and we have focused in the roots, which role seems to be crucial in the transltion. JAT gene characterization revealed the existence of a JAT gene family, in which have been described three paralogs differentially expressed. JA T gene location seems to be associated to the vascular system and tissues with active growth. The transcriptomic analysis of differential gene expression between juvenile and adult roots identified 16 unigenes directly or indirectly related to the íransiíion. It has also been developed a complete transcriptome of olive roots in order to respond to several biotic and abiotic stress situations
[EN] Plants undergo several developmental phases during their life cycle, Transitions between phases are well known in herbaceous, conversely to what happens in woody plants, where their lower growth rate and amplitude of the phases, hinder their study, In the current work, we have centered on the juvenile to adult transition, in which the tree achieves the competence to reproduction and we have focused in the roots, which role seems to be crucial in the transltion. JAT gene characterization revealed the existence of a JAT gene family, in which have been described three paralogs differentially expressed. JA T gene location seems to be associated to the vascular system and tissues with active growth. The transcriptomic analysis of differential gene expression between juvenile and adult roots identified 16 unigenes directly or indirectly related to the íransiíion. It has also been developed a complete transcriptome of olive roots in order to respond to several biotic and abiotic stress situations
Descripción
Palabras clave
Gen JAT, Transición juvenil-adulto, Expresión génica diferencial, Olivo, RNA-seq, JAT gene, Juvenile to adult transition, Differencially expressed genes, Olive tree
Citación
Jiménez-Ruiz, Jaime. Genes expresados en la raíz del olivo cultivado y posible implicación en la transición de fase juvenil a adulto. 2014, 258 p. [http://hdl.handle.net/10953/639]