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Title:: Study on Drought Resistance and Salt Tolerance of Soybean Gene GmFDL06

Author(s):: LI Yuan-yuan¹; NAN Hai-yang²; LIU Bao-hui²; KONG Fan-jiang²; GUO Chang-hong¹; (1.Key Laboratory of Molecular Genetics and Genetics and Breeding of Heilongjiang Province/College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; 2. The Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography Abstract:Soybean(Glycine max L Merr)

Keywords:: bZIP transcription factor; GmFDL06; Stress tolerance; Drought resistance; Salt tolerance

PACS:: -

DOI:: 10.11861/j.issn.1000-9841.2017.03.0351

Abstract:: Soybean (Glycine max I.Merr) is an important oil and high protein crop in the world.However, drought and salt stress can cause soybean yield reduction. Therefore, the study of soybean drought resistance and salt tolerance related gene is very important- bZIP transcription factor plays an important role in the response of plant defense and dversity stress. Soybean GmFDL06 is a member of group A of bZIP transcription factor family, and its transcription level was affected by ABA, PEG and high salt stress, we analyzed the drought resistance and salt tolerance of GmFDL06 transgenic soybean seedling in this study. The relative plant height(RPH) and relative shoot dry weight(RSDW) of GmFDL06-transgenic plants were significantly higher than that of wild soybean Dongnong 50 after PEG and salt treatment. Under the salt stress, the damage degree of GmFDL06 transgenic plants was lower than Dongnong 50, and over-expression of GmFDL06 reduced the accumulation of Na⁺?ions, reduced the damage caused by salt stress, and the over-expression of GmFDL06 gene could increase the expression of downstream stress related genes such as GmbZIP1, GmNAC11, GmDERB2A;2, GmWRKY27 and so on. These results indicate that GmFDL06 is involved in the abiotic stress response of soybean and has the potential ability to improve the drought and salt stress tolerance of soybean, which provide the basis for the study of stress related genes and screening stress tolerance soybean cultivars.

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Study on Drought Resistance and Salt Tolerance of Soybean Gene GmFDL06(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

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