Genes implicados en la floración del olivo
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2014-09-15
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Jaén: Universidad de Jaén
Resumen
[ES]La floración es la etapa que se designa con la adquisición de los órganos
reproductores por parte de la planta, la cual está muy influenciada por factores tanto
endógenos como ambientales. Para que se produzca la floración es necesario que la
planta adquiera un tamaño mínimo. Esta etapa está regulada por una serie de rutas
como son la vernalización, la ruta autónoma, y el fotoperiodo, entre otras. Los genes
estudiados en este proyecto pueden actuar de forma directa o indirecta en la
formación de las estructuras que darán lugar a la aparición de los órganos florales.
Estos genes son SOC1, CO-LIKE, U-17, U-24, AP1 y dos genes de los que no se
conoce casi nada, que son MADS y CAF1. Para este proyecto nos planteamos la
identificación de secuencias de nucleótidos obtenidos a partir del transcriptoma de
meristemos juveniles y adultos de olivo con el fin de encontrar genes candidatos
implicados en la floración, estudiar el comportamiento de estos genes a lo largo del
tiempo e identificar el punto máximo de expresión de cada uno de estos genes en el
tiempo de estudio, para conocer su papel en la floración. Para este proyecto,
recogimos las muestras de dos árboles diferentes (A y B), procedentes del Instituto
de Investigación y Formación Agraria y Pesquera (IFAPA) de Córdoba, desde el
mes 6 al 33 ambos inclusive, cada tres meses. Partimos también de un microarray
(García López, MC; et. al; 2014), a partir del cual seleccionamos los genes
expresados al inicio de la fase juvenil e inhibidos en la etapa adulta, y viceversa.
Para conocer la función de dicha secuencia hicimos un Blast-n y además fueron
sometidas a estudios de expresión génica mediante PCR cuantitativa en tiempo real.
[EN]Flowering is the stage that is designated by the acquisition of the reproductive organs of the plant, which is heavily influenced by both endogenous and environmental factors. Flowering to occur it is necessary for the plant to reach a minimum size. This step is regulated by a number of routes such as vernalization, autonomous route, and photoperiod, among others. The genes studied in this project can act directly or indirectly in the formation of the structures that give rise to the appearance of floral organs. These genes are SOC1, CO-LIKE, U-17, U-24, AP1 and two genes is not known almost nothing, which are MADS and CAF1. For this project we consider the identification of nucleotide sequences obtained from the transcriptome of juvenile and adult olive meristems in order to find candidate genes involved in flowering, study the behavior of these genes over time and identify the point maximum expression of each of these genes in the study time, for his role in bloom. For this project, we collected samples from two different trees (A and B), from the Institute of Agricultural Research and Training and Fisheries (IFAPA) of Córdoba, from month 6 to 33 inclusive, every three months. Also start from a microarray (García López, MC, et al,. 2014), from which we select those expressed at the beginning of the juvenile phase and inhibited genes in the adult stage, and vice versa. For the function of this sequence did a Blast-n and we also were subjected to gene expression studies using quantitative real-time PCR.
[EN]Flowering is the stage that is designated by the acquisition of the reproductive organs of the plant, which is heavily influenced by both endogenous and environmental factors. Flowering to occur it is necessary for the plant to reach a minimum size. This step is regulated by a number of routes such as vernalization, autonomous route, and photoperiod, among others. The genes studied in this project can act directly or indirectly in the formation of the structures that give rise to the appearance of floral organs. These genes are SOC1, CO-LIKE, U-17, U-24, AP1 and two genes is not known almost nothing, which are MADS and CAF1. For this project we consider the identification of nucleotide sequences obtained from the transcriptome of juvenile and adult olive meristems in order to find candidate genes involved in flowering, study the behavior of these genes over time and identify the point maximum expression of each of these genes in the study time, for his role in bloom. For this project, we collected samples from two different trees (A and B), from the Institute of Agricultural Research and Training and Fisheries (IFAPA) of Córdoba, from month 6 to 33 inclusive, every three months. Also start from a microarray (García López, MC, et al,. 2014), from which we select those expressed at the beginning of the juvenile phase and inhibited genes in the adult stage, and vice versa. For the function of this sequence did a Blast-n and we also were subjected to gene expression studies using quantitative real-time PCR.
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Fisiología vegettal