Tartary Buckwheat R2R3-MYB Gene FtMYB3 Negatively Regulates Anthocyanin and Proanthocyanin Biosynthesis.
Tartary Buckwheat R2R3-MYB Gene FtMYB3 Negatively Regulates Anthocyanin and Proanthocyanin Biosynthesis.
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苦荞R2R3-MYB基因FtMYB3负调控花青素和原花青素生物合成
DOI：
10.3390/ijms23052775
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发表时间：
2022-03-03
影响因子：
5.6
通讯作者：
Zhao H
中科院分区：
文献类型：
--
作者：
Wang L;Deng R;Bai Y;Wu H;Li C;Wu Q;Zhao H
Anthocyanins and proanthocyanidins (PAs) are vital secondary metabolites in Tartary buckwheat because of their antioxidant capacities and radical scavenging functions. It has been demonstrated that R2R3-MYB transcription factors (TFs) are essential regulators of anthocyanin and PA biosynthesis in many plants. However, their regulatory mechanisms in Tartary buckwheat remain to be clarified. Here, we confirmed the role of FtMYB3 in anthocyanin and PA biosynthesis. FtMYB3, which belongs to the subgroup 4 R2R3 family was predominantly expressed in roots. The transcriptional expression of FtMYB3 increased significantly under hormone treatment with SA and MeJA and abiotic stresses including drought, salt, and cold at the seedling stage. Functional analyses showed that FtMYB3 negatively regulated anthocyanin and PA biosynthesis, primarily via downregulating the expression of the DFR, ANS, BAN, and TT13 in transgenic Arabidopsis thaliana, which may depend on the interaction between FtMYB3 and FtbHLH/FtWD40. Altogether, this study reveals that FtMYB3 is a negative regulatory transcription factor for anthocyanin and PA biosynthesis in Tartary buckwheat.
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茶树中的 WD40 重复蛋白通过形成 MYB-bHLH-WD40 三元复合物调节花青素和原花青素的积累
影响因子：
5.6
作者：
Liu Y;Hou H;Jiang X;Wang P;Dai X;Chen W;Gao L;Xia T
通讯作者：
Xia T
影响因子：
7.2
作者：
Clough, SJ;Bent, AF
通讯作者：
Bent, AF
影响因子：
6.4
作者：
Bai, Yue-Chen;Li, Cheng-Lei;Wu, Qi
通讯作者：
Wu, Qi
影响因子：
7.2
作者：
Gonzalez, Antonio;Zhao, Mingzhe;Lloyd, Alan M.
通讯作者：
Lloyd, Alan M.
影响因子：
1.9
作者：
Davies, KM;Schwinn, KE;Bradley, JM
通讯作者：
Bradley, JM