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通过直接激活NCED4表达,ZFP151提高了大米的干旱耐受性

Kai Huang¹, Xiujie Liu¹, Wenzhu Jiang²

¹Guangdong Basic Research Center of Excellence for Precise Breeding of Future Crops, and Guangdong Laboratory for Lingnan Modern Agriculture, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Key Laboratory for Enhancing Resource Use Efficiency of Crops in South China, Ministry of Agriculture and Rural Affairs, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China.

Journal of genetics and genomics = Yi chuan xue bao

|February 28, 2026

概括

一个关键的基因,ZFP151,通过增加酸 (ABA) 产量来增强大米干旱耐受性. 精英ZFP151等位基因提高了抗干旱能力,为开发更坚固的水品种提供了目标.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
农业科学农业科学

背景情况:

干旱压力对全球大米产量产生了重大影响.
了解大米对干旱耐受性的分子基础对于粮食安全至关重要.
植物中的非生物应激反应是复杂的,需要详细的研究.

研究的目的:

确定和描述大米干旱耐受性的关键调节剂.
阐明ZFP151赋予干旱耐受性的分子机制.
评估ZFP151等位基因在改善水品种方面的潜力.

主要方法:

一种Cys2/His2 (C2H2) 类型的指蛋白的表征,ZFP151.1.
对ZFP151对NCED4基因的转录调节的分析.
在天然加入中对ZFP151的哈普洛型分析.
ZFP151等位基因侵入一个易受感染的米品种.

主要成果:

ZFP151充当了对大米干旱耐受性的积极转录因子.
ZFP151直接与NCED4促进体结合,激活其表达和ABA生物合成.
鉴定ZFP151^Hap1等位基因为精英等位基因,与较高的NCED4表达和ABA水平相关.
ZFP151^Hap1的侵入显著提高了接收米种的干旱耐受性.

结论:

在大米中,ZFP151在酸 (ABA) 介导的干旱反应途径中发挥着关键作用.
ZFP151Hap1等位基因代表了一种宝贵的遗传资源,用于培育耐旱大米.
针对ZFP151提供了一个有希望的策略,以提高大米对干旱压力的抵抗力.

关键词:

ABA生物合成 ABA生物合成耐旱耐受性耐旱耐受性耐旱耐受性自然变化的自然变化.大米大米大米大米大米 ZFP151 是一个

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