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利用哈普洛伊德诱导器介导的基因组编辑来加速玉米品种的发展

Lina Li^1,2, Xiao Fu¹, Xiantao Qi¹

¹State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.

Plant biotechnology journal

|February 12, 2025

概括

哈普洛伊德诱导和基因组编辑 (HI-Edit/IMGE) 有效地在玉米中产生有针对性的突变,加速作物繁殖. 这项研究验证了HI-Edit/IMGE的工业应用,证明了商业品种的高诱导和编辑率.

科学领域:

植物科学植物科学
遗传学遗传学是一个
农业生物技术农业生物技术

背景情况:

哈普洛伊德诱导和基因组编辑 (HI-Edit/IMGE) 提供了一种强大的作物改进方法.
技术方面和适用于玉米种子行业的适用性需要彻底评估.

研究的目的:

开发和评估HI-Edit/IMGE玉米系用于针对性突变生成.
评估HI-Edit/IMGE在商业玉米背景中的效率和准确性.

主要方法:

通过使用CRISPR-Cas9针对Waxy1 (Wx1) 和Shrunken2 (Sh2) 基因,设计了三个HI-Edit/IMGE玉米系 (EditWx,EditSh,EditWx&Sh).
利用单体诱导物CHOI3和特征复制数和突变等位基因 (mtl,dmp) 促进单体诱导.
在B73和其他六个商业家长线路中评估业绩.

主要成果:

孕产妇的平分体诱导效率在8.55%至20.89%之间.
目标突变率在0.38%至1.46%之间.
编辑Wx&Sh成功地将多个CRISPR-Cas9系统相结合,实现同时发生突变.

结论:

HI-Edit/IMGE在工业上适用于通过授粉产生有针对性的突变.
精细的Cas9副本编号表征对于优化HI-Edit/IMGE至关重要.
该技术加速了编辑特征的整合到商业玉米品种中.

关键词:

HI-编辑/IMGE 编辑基因组编辑基因组编辑随机诱导的哈普洛伊德诱导玉米玉米玉米是一种种子工业应用种子工业应用

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相关概念视频

CRISPR

CRISPR

Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...