کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2817632 | 1160001 | 2012 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Overexpression of a wheat MYB transcription factor gene, TaMYB56-B, enhances tolerances to freezing and salt stresses in transgenic Arabidopsis Overexpression of a wheat MYB transcription factor gene, TaMYB56-B, enhances tolerances to freezing and salt stresses in transgenic Arabidopsis](/preview/png/2817632.png)
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.
► The sequences of TaMYB56 genes are isolated and mapped to the wheat chromosomes 3B and 3D.
► The expression levels of TaMYB56-B and TaMYB56-D are strongly induced by cold stress.
► Overexpression of TaMYB56-B enhances tolerances to freezing and salt stresses in transgenic Arabidopsis.
Journal: Gene - Volume 505, Issue 1, 15 August 2012, Pages 100–107