Overexpression of a wheat MYB transcription factor gene, TaMYB56-B, enhances tolerances to freezing and salt stresses in transgenic Arabidopsis

文献类型： 外文期刊

第一作者： Zhang, Lichao

作者： Zhang, Lichao;Zhao, Guangyao;Xia, Chuan;Jia, Jizeng;Liu, Xu;Kong, Xiuying

作者机构：

关键词： Abiotic stresses;MYB protein;Overexpression;Wheat

期刊名称：GENE （ 影响因子：3.688； 五年影响因子：3.329 ）

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年卷期：

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收录情况： SCI

摘要： The MYB proteins play central roles in the stress response in plants. Our previous works identified a cold stress-related gene, TaMYB56, which encodes a MYB protein in wheat. In this study, we isolated the sequences of TaMYB56 genes, and mapped them to the wheat chromosomes 3B and 3D. The expression levels of TaMYB56-B and TaMYB56-D were strongly induced by cold stress, but slightly induced by salt stress in wheat. The detailed characterization of the Arabidopsis transgenic plants that overexpress TaMYB56-B revealed that TaMYB56-B is possibly involved in the responses of plant to freezing and salt stresses. The expression of some cold stress-responsive genes, such as DREB1A/CBF3 and COR15a, were found to be elevated in the TaMYB56-B-overexpressing Arabidopsis plants compared to wild-type. These results indicate that TaMYB56-B may act as a regulator in plant stress response.

分类号： R394

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