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一个BoABF2-BoMYB96-BoMIEL1级联调节了白菜中的积累

Yashu Li¹, Yang Liu¹, Yuting Zhang¹

¹College of Forestry, Shenyang Agricultural University, Shenyang, 110161, China.

The New phytologist

|March 12, 2026

概括

BoMYB96积极调节皮质积累和干旱耐受性. 涉及BoABF2,BoMYB96和BoMIEL1的监管级联控制生物合成和抗干旱能力,为作物改善提供遗传资源.

科学领域:

植物分子生物学植物分子生物学
植物生理学植物生理学
农业科学农业科学

背景情况:

树皮对于植物的抗旱能力至关重要,但其调节机制,特别是干旱引起的积,尚未完全理解.
了解这些机制对于开发具有增强压力耐受性的作物至关重要.

研究的目的:

为了确定调节积累和干旱耐受性的基因在菜 (Brassica oleracea var. 接受的意思).
阐明控制干旱引起的生物合成的监管网络.

主要方法:

全基因组定量特征位点再测序确定了候选基因.
使用了基因表达分析 (过度表达,RNAi,CRISPR/Cas9) 和蛋白质相互作用研究 (Western blot).
对BoMYB96等位基因及其对生物合成基因 (BoCER3,BoKCS1,BoKCR1) 的转录活性进行分析.

主要成果:

确定BoMYB96是积累和耐干旱的积极调节者.
两个等位基因BoMYB96^S0836和BoMYB96^6BZ显示出差异性活性,其中BoMYB96^S0836具有更强的作用.
干旱诱导的BoABF2激活了BoMYB96^S0836,而E3无酸酶BoMIEL1则调解了BoMYB96的降解.
在干旱期间,BoABF2-BoMYB96-BoMIEL1级联被确定为生物合成的关键调节者.

结论:

BoMYB96 是一个关键的转录因子,促进生物合成和干旱耐受性.
已识别的BoABF2-BoMYB96-BoMIEL1调控级联为干旱引起的积累提供了洞察力.
这项研究提供了宝贵的遗传资源,用于培育耐旱的卷心菜品种.

关键词:

这就是BoABF2和BoABF2.波米埃尔 (Bomiel) 是一个在BoMYB96中使用.皮质的,是皮质的.耐旱耐受性耐旱耐受性一个古老的 kale kale.

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