Artículo
Identification of genes involved in the drought adaptation and recovery in Portulaca oleracea by differential display
D'andrea, Rodrigo Matias
; Triassi, Agustina
; Casas, María Isabel; Andreo, Carlos Santiago
; Lara, Maria Valeria
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Fecha de publicación:
05/2015
Editorial:
Elsevier France-Editions Scientifiques Medicales Elsevier
Revista:
Plant Physiology and Biochemistry
ISSN:
0981-9428
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Portulaca oleracea is one of the richest plant sources of ω-3 and ω-6 fatty acids and other compounds potentially valuable for nutrition. It is broadly established in arid, semiarid and well-watered fields, thus making it a promising candidate for research on abiotic stress resistance mechanisms. It is capable of withstanding severe drought and then of recovering upon rehydration. Here, the adaptation to drought and the posterior recovery was evaluated at transcriptomic level by differential display validated by qRT-PCR. Of the 2279 transcript-derived fragments amplified, 202 presented differential expression. Ninety of them were successfully isolated and sequenced. Selected genes were tested against different abiotic stresses in P.oleracea and the behavior of their orthologous genes in Arabidopsis thaliana was also explored to seek for conserved response mechanisms. In drought adapted and in recovered plants changes in expression of many protein metabolism-, lipid metabolism- and stress-related genes were observed. Many genes with unknown function were detected, which also respond to other abiotic stresses. Some of them are also involved in the seed desiccation/imbibition process and thus would be of great interest for further research. The potential use of candidate genes to engineer drought tolerance improvement and recovery is discussed.
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Articulos(CEFOBI)
Articulos de CENTRO DE EST.FOTOSINTETICOS Y BIOQUIMICOS (I)
Articulos de CENTRO DE EST.FOTOSINTETICOS Y BIOQUIMICOS (I)
Citación
D'andrea, Rodrigo Matias; Triassi, Agustina; Casas, María Isabel; Andreo, Carlos Santiago; Lara, Maria Valeria; Identification of genes involved in the drought adaptation and recovery in Portulaca oleracea by differential display; Elsevier France-Editions Scientifiques Medicales Elsevier; Plant Physiology and Biochemistry; 90; 5-2015; 38-49
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