通过CRISPR-Cas9核糖核蛋白 (RNP) 电穿孔产生双重淘汰牛
Gyeong-Min Gim1,2, Kyeong-Hyeon Eom1,2, Dong-Hyeok Kwon1
1Laboratory of Theriogenology and Biotechnology, Department of Veterinary Clinical Science, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, Republic of Korea.
Journal of animal science and biotechnology
|August 5, 2023
概括
电穿孔可以在牛胚胎中进行高效的基因组编辑,生产MSTN/PRNP牛肉和MSTN/BLG奶牛. 这种方法为畜牧业精密育种提供了可行的替代方案.
科学领域:
- 农业科学 农业科学
- 动物遗传学动物遗传学
- 生物技术是生物技术.
背景情况:
- 由于生物和技术的局限性,牛的基因组编辑具有挑战性.
- 像微注射和SCNT这样的传统方法复杂且昂贵.
- 电穿孔为牛基因组编辑提供了一个有前途的替代方案.
研究的目的:
- 评估电穿孔在牛胚胎中基因组编辑的效率.
- 评估使用这种方法生产基因组编辑牛的可行性.
- 建立一种更容易获得的方法,用于牛精密育种.
主要方法:
- 利用电穿孔将CRISPR-Cas9核糖蛋白 (RNP) 复合物输送到牛胚胎中.
- 使用T7E1试验证实MSTN,PRNP和BLG基因的编辑效率.
- 将编辑的胚胎转移给代孕母亲,并通过有针对性的深度测序分析产生的小牛的突变.
主要成果:
- 在胚胎中实现了高突变率:MSTN (57.6%),PRNP (54.6%) 和联合MSTN/BLG (83.9%/84.5%).
- 成功生产了基因组编辑的小牛,其中有一只双击的MSTN/PRNP小牛和四只双击的MSTN/BLG小牛.
- 证明了电穿孔的成功应用,用于产生转基因牛.
结论:
- 电解RNP是生产基因组编辑牛的有效方法.
- 生产的MSTN/PRNP (牛肉) 和MSTN/BLG (奶牛) 牛,对未来的研究有价值.
- 这种技术在畜牧业中推进了精确的育种策略.
相关概念视频
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 Short...
CRISPR/Cas9 Genome Editing
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...


