Cloning and Overexpression of GmDREB2 Gene from a Vietnamese Drought-resistant Soybean Variety



Título del documento: Cloning and Overexpression of GmDREB2 Gene from a Vietnamese Drought-resistant Soybean Variety
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000392683
ISSN: 1516-8913
Autors: 1
2
1
2
1
Institucions: 1Thai Nguyen University of Education, Vietnam
2Vietnam Academy of Science and Technology, Institute of Biotechnology, Ho Chi Minh City. Vietnam
Any:
Període: Sep-Oct
Volum: 58
Número: 5
Paginació: 651-657
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés This work studied the amplification, cloning and determination of the GmDREB2 gene from the soybean cultivar DT2008 and five Vietnamese local soybean cultivars (DT26, DT51, DVN5, CB, CBD) and designed the vector carrying the structur e containing GmDREB2 gene from cultivar DT2008 (best drought tolerant). The coding region of GmDREB2 gene isolated from six soybean cultivars was 480 nucleotides in length, encoding 159 amino acids. The recombinant structure was designed as 35S - GmDREB2 - c - myc and its expression was analysed in transgenic tobacco plants. Recombinant DREB2 protein was expressed in five transgenic tobacco lines with molecular weights close to 20 kDa. During the drought conditions, the proline accumulation of the transgenic to bacco lines was higher than on wild - type (WT) plants, with the rate from 211.17 to 332.44% after five days of drought stress, and from 262.79 to 466.04% after nine days of drought stress. The two lines, TG2 and TG12 had the highest increase rate. These results provided the basis to generate drought - tolerant soybean plants by GmDREB2 overexpression
Disciplines Biología,
Química,
Agrociencias
Paraules clau: Genética,
Bioquímica,
Fitotecnia,
Resistencia a la sequía,
Clones,
Variedades,
Transferencia génica,
Factores de transcripción,
Soya
Keyword: Biology,
Chemistry,
Agricultural sciences,
Genetics,
Biochemistry,
Crop husbandry,
Drought resistance,
Clones,
Cultivars,
Gene transfer,
Soybean,
Transcription factors
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