使用基因向来提高植物对非生物性压力耐受性的精确敲进应激反应的cis-regulatory元素
Yongping Ke1,2, Dali Kong1,2,3, Wenxin Zhang1,2
1Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
The New phytologist
|July 12, 2025
概括
研究人员使用CRISPR基因向将应激反应元素插入到植物促进剂中. 这增强了植物的应激耐受性,没有负面影响,为改善作物提供了新的策略.
科学领域:
- 植物科学 植物科学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 植物面临着众多的生物和非生物压力,影响生长和产量.
- 培育耐压品种是植物育种的一个关键目标.
- 基因编辑通常集中在蛋白质编码序列上,促进器操纵的研究较少.
研究的目的:
- 通过CRISPR基因向,研究将应激反应性cis-acting调节元件 (SRCE) 插入植物促进剂的疗效.
- 评估SRCE敲进对植物对非生物压力的耐受性的影响.
- 探索促进者操纵作为增强植物特征的新策略.
主要方法:
- 使用集群定期间隔的短时间Palindromic重复 (CRISPR) /CRISPR相关蛋白 9-介导基因向 (GT).
- 在Arabidopsis.中执行了SRCEs的精确敲进 (KI) 进入候选基因的促进子区域.
- 在改造植物中评估压力耐受性,口腔关闭,水损失率和氧化损伤.
主要成果:
- 通过CRISPR介导的SRCE-KI植物表现出显著提高对非生物应激的耐受性.
- 在SRCE-KI工厂中没有观察到任何不良影响.
- SRCE-KI植物显示出快速的口腔关闭,减少了叶子的水损失,并在压力下减少了氧化损伤.
结论:
- 以CRISPR为媒介的基因向是植物基因组操纵的一个有前途的技术.
- 通过SRCE-KI进行局部促进剂操纵是增强植物应激耐受性的有效策略.
- 这种方法为分子育种和提高作物弹性提供了一个新的途径.
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