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在植物中使用CRISPR/dCas13a编程可编程RNAN6 - - 甲基氨酸编辑

Chuanlin Shi¹, Wenli Zou¹, Xiangpei Liu¹

¹Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.

Plant biotechnology journal

|February 16, 2024

概括

研究人员开发了可编程工具,可以在植物信使RNA (mRNA) 上编辑N6-甲基氨酸 (m6A). 这种编辑增强了植物生长,为作物改善提供了潜力.

科学领域:

分子生物学分子生物学
植物科学植物科学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

N6-甲基氨酸 (m6A) 是一种关键的RNA修饰,影响mRNA处理和代谢.
了解植物中的单个m6A功能需要针对性修改和分析的工具.

研究的目的:

创建可编程工具来编辑植物mRNA上的特定m6A位点.
研究植物m6A修饰的功能和表型后果.

主要方法:

将m6A编写器 (MTA/MTB) 和擦拭器 (ALKBH5) 合到催化死Cas13a (dCas13a) 中,以创建可编程的m6A编辑器.
应用编辑器以准Nicotiana benthamiana和Arabidopsis thaliana中的特定RNA转录.
分析了m6A水平的变化和非目标效应.

主要成果:

证明了m6A在目标RNA转录上的高效和特异性沉积和去除.
准短根 (SHR) 转录增加了m6A水平,促进了降解,并增强了植物生长.
观察到植物的高度,生物量,叶子/根的尺寸和谷粒的重量增加在*Arabidopsis*中,具有有限的目标外效应.

结论:

开发了适用于植物mRNA的可编程m6A编辑工具.
这些工具可以对植物中的单个m6A修饰进行功能性研究.
通过有针对性的m6A编辑改善作物的潜在应用.

关键词:

阿拉比多普西斯 (Arabidopsis) 是一种植物.在CRISPR/dCas13a中使用.N6 - - 甲基氨氨酸 m6A编辑编辑植物生长植物生长植物生长

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