在Aspergillus fumigatus中使用CRISPR/Cas9和内源的反选择性标记物同时进行多基因整合
Luis Enrique Sastré-Velásquez1, Natalia Mach2, Birte Mertens1
1Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria.
Journal of biological engineering
|July 29, 2025
概括
这项研究引入了一种CRISPR/Cas9方法,使用可反选择的标记物用于Aspergillus fumigatus的同时多基因集成. 这通过减少复杂基因组修改的时间和劳动来推进真菌基因工程.
科学领域:
- 菌类学 菌类学是指菌类学.
- 分子生物学分子生物学
- 基因工程是一种基因工程.
背景情况:
- 克里斯普尔/Cas9彻底改变了基因组编辑,使得精确的基因修改成为可能.
- 可选择的标记物对于识别成功编辑的细胞至关重要.
- 之前的多基因集成方法在Aspergillus fumigatus中由于序列转换而耗时.
研究的目的:
- 开发一种精简的方法,用于在Aspergillus fumigatus中同时进行多基因集成.
- 为了利用CRISPR/Cas9和内源性反选择性标记物进行高效的基因操纵.
主要方法:
- 结合CRISPR/Cas9与三种内源的可反选择标记 (azgA,fcyB,cntA) 进行同时的磁带集成.
- 使用的标记物在营养吸收中的作用,用于三重选择性转化.
- 引入光报告器来监测耐醇分离物的生长模式.
主要成果:
- 在A. fumigatus.中成功实现了三个表达盒的同时基因组集成.
- 证明了一种三重选择性转换过程.
- 视觉化和监控的增长工程真菌分离物与不同的抗真菌耐药性.
结论:
- 开发的技术显著减少了在真菌中进行基因操纵的时间和劳动力.
- 允许在单个步骤中灵活有效地引入多个遗传特征.
- 促进了真菌遗传工程应用的快速有效的多基因集成.
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