使用二进制转基因CRISPR/Cas9创建的无翼菌株缓解了人们对Hermetia illucens大规模繁殖的担忧
Zongqing Kou1,2,3, Shaozhen Wang2,3, Xingyu Luo1
1School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Communications biology
|December 20, 2024
概括
研究人员使用CRISPR/Cas9基因编辑开发了一只没有翅膀的黑士兵 (Hermetia illucens). 这项创新解决了人们对大规模养殖中的昆虫逃脱的担忧,提高了废物回收和牲畜料生产的生物安全性.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 遗传学 遗传学 是一个
- 生物技术是生物技术.
背景情况:
- 黑兵 (Hermetia illucens) 幼虫对于废物回收利用和作为牲畜料非常有价值.
- 大规模养殖昆虫引发了人们对潜在逃脱和环境影响的担忧.
研究的目的:
- 开发一种基因策略,防止黑兵从工业养殖设施大规模逃离.
- 使用先进的基因编辑技术,创建一个没有翅膀的黑兵菌株.
主要方法:
- 在黑兵中利用二进制转基因CRISPR/Cas9系统进行基因编辑.
- 鉴定和评估性腺特异性促进物 (纳米和超) 来驱动Cas9表达.
- 通过将Hiexu-Cas9与sgRNA表达昆虫交叉生成无翼突变体.
主要成果:
- 使用Hiexu-Cas9系统实现了标记基因"白"的高淘汰效率.
- 已证明Cas9的母体沉积导致后代的有效基因淘汰.
- 成功生成了无翼的黑士兵飞突变种,具有受损的交配能力.
结论:
- 这项研究验证了CRISPR/Cas9作为基因功能研究和黑兵的工业应用的有效工具.
- 开发的无翼菌株减轻了逃生风险,提高了昆虫养殖的安全性和可持续性.
- 这种遗传方法为管理大规模的黑兵种群提供了切实可行的解决方案.
相关概念视频
00:49What is Genetic Engineering?
Overview
01:59CRISPR
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...
02:53CRISPR and crRNAs
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
01:28CRISPR/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...