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The myb transcription factor MdMYB6 suppresses anthocyanin biosynthesis in transgenic Arabidopsis

文献类型： 外文期刊

作者： Gao, Jian-Jie 1 ; Shen, Xue-Fang 1 ; Zhang, Zhen 2 ; Peng, Ri-He 1 ; Xiong, Ai-Sheng 1 ; Xu, Jing 2 ; Zhu, Bo 1 ; Zheng, 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Agrobiotechnol Res Ctr, Shanghai 201106, Peoples R China

2.Nanjing Agr Univ, Coll Hort, Nanjing 210095, Peoples R China

3.Shanghai Acad Agr Sci, Biotechnol Res Inst, Shanghai 201106, Peoples R China

关键词： sucrose: 57-50-1;anthocyanin: synthesis;accumulation;R2R3-Myb protein: transcription factor

期刊名称：PLANT CELL TISSUE AND ORGAN CULTURE （ 影响因子：2.711； 五年影响因子：2.73 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The R2R3-Myb proteins comprise a large family of plant transcription factors that regulate the expression of multiple drought-responsive and cold-responsive genes by binding special cis-elements at the promoter. There have been previous studies in transgenic plant over-expression of the myb protein. In this article, we analyzed the function of MdMYB6, an R2R3-type Myb transcription factor from apples (Malus x domestica), in transgenic Arabidopsis plants. In contrast to wild type plants, these transgenic lines accumulated less anthocyanin. Equimolar concentrations of sorbitol did not alter the anthocyanin accumulation. Real-time polymerase chain reaction (PCR) indicated that MdMYB6 over-expression suppressed enzymes involved in anthocyanin biosynthesis and some Arabidopsis basic helix-loop-helix (bHLH) genes. The MdMYB6 transcription faction may be an important repressor of anthocyanin biosynthesis in plants.

  • 相关文献

[1]Forced expression of Mdmyb10, a myb transcription factor gene from apple, enhances tolerance to osmotic stress in transgenic Arabidopsis. Gao, Jian-Jie,Peng, Ri-He,Xiong, Ai-Sheng,Zhu, Bo,Yao, Quan-Hong,Gao, Jian-Jie,Zhang, Zhen,Xu, Jing,Yao, Quan-Hong.

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