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Updated: Sep 16, 2025

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms

Published on: May 25, 2018

通过使用CRISPR/Cas9应用tRNA处理系统,改进多倍体小麦同类基因位置的同时基因组编辑

Shoya Komura¹, Mitsuko Kishi-Kaboshi², Fumitaka Abe³

¹Graduate School of Agriculture, Kyoto University.

Plant biotechnology (Tokyo, Japan)

|July 10, 2025

概括

这项研究表明,CRISPR/Cas9系统与tRNA处理系统显著提高了小麦的基因组编辑效率. 这种方法可以同时编辑多个同类基位,实现快速突变生成的高达100%的效率.

科学领域:

植物遗传学植物遗传学
分子生物学分子生物学
生物技术是生物技术.

背景情况:

小麦 (Triticum aestivum L.) 拥有三个基因组,在同源基因中具有功能冗余.
为了在小麦中实现功能丧失突变,由于这种冗余性,需要高的基因组编辑效率.
使用内源tRNA处理系统进行CRISPR/Cas9基因组编辑,可以同时表达多个单导向RNA (sgRNA).

研究的目的:

用小麦的tRNA处理系统评估多个sgRNA表达的基因组编辑效率.
评估在小麦中同时进行多个同源位置编辑的有效性.

主要方法:

在未成熟的小麦胚胎中引入聚基斯特龙tRNA-sgRNA载体,以定量特征位点为目标.
对转型T1植物的基因组编辑效率的评估.
每个基因同时表达6个sgRNA,以准所有同类基因位置.

主要成果:

在使用三个sgRNA模块时,根据sgRNA位置观察到基因组编辑效率没有显著差异.
使用每基因6个sgRNA同时编辑多个同类基因位点,可以达到高达100%的编辑效率.
这种tRNA处理系统对于在小麦中同时进行同类基位编辑非常有效.

结论:

tRNA处理系统是实现小麦同类基因位点高效同时基因组编辑的高效工具.
这种方法有助于在小麦等多体物种中快速生成功能丧失突变物.
这些发现对加速遗传研究和小麦作物改进具有重大意义.

关键词:

这就是CRISPR/Cas9的作用.基因组编辑基因组编辑多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种多种在tRNA处理系统中.小麦小麦小麦小麦小麦小麦小麦.

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