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Updated: Jan 11, 2026

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开发一种RNA胺酶辅助的CRISPR/Cas9系统,有效地在植物中产生和分离无Cas9突变体

Sha Liu¹, Jiuyuan Bai^1,2, Bo Zhan¹

¹Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China.

|November 13, 2025

概括

一个新的RNA吸收体系统,3WJ-4×Bro/Cas9简化了对无Cas9编辑植物的选. 这种CRISPR/Cas9的进步提高了植物基因工程的效率和准确性.

科学领域:

植物生物技术植物生物技术
分子生物学分子生物学
遗传学遗传学是一个

背景情况:

对于植物基因工程来说,CRISPR/Cas9是至关重要的.
选无Cas9编辑植物是具有挑战性和低效的.
像GFP这样的传统记者可以干扰Cas9的活动.

研究的目的:

开发一种RNA吸收酶辅助的CRISPR/Cas9系统 (3WJ-4×Bro/Cas9) 以改进植物基因组编辑.
提供一个替代的报道系统,避免干扰Cas9.
为了提高选无Cas9编辑植物的效率和准确性.

主要方法:

设计了一个RNA吸收体 (3WJ-4×Bro) 作为转录记者.
开发了3WJ-4×Bro/Cas9系统作为CRISPR/Cas9传递方法.
将3WJ-4×Bro/Cas9与传统GFP/Cas9系统在工厂中的性能进行比较.

主要成果:

3WJ-4×Bro/Cas9证明了更高效的转换和T1变压器的精确选择.
该系统将T1突变率提高了78.6%,并实现了1.78%的同卵性突变率.
3WJ-4×Bro/Cas9在T2生成中提高了Cas9无基因突变体查效率30.2%,并促进了同卵性双基因突变体的生成.

结论:

3WJ-4×Bro/Cas9系统为植物基因组编辑提供了一个非转基因,高效和广泛适用的策略.
这种基于RNA体的系统克服了传统报道者的局限性,提高了选过程.
开发的系统显著提高了CRISPR/Cas9介导植物基因工程的整体效率和准确性.

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