一种基于测序的方法,用于量化细菌在细胞内环境中的基因删除突变体
Xiao Fei1,2, Zengzhi Yuan3,4, Sandra Marina Wellner2
1Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.
Frontiers in microbiology
|February 21, 2025
概括
我们开发了一种使用下一代测序来量化细胞内基因删除突变物生存的新方法. 这种简单的全基因组测序方法可以准确地测量突变物生存率,而不需要特殊的标记物,有助于微生物学研究.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 下一代测序 (NGS) 已经彻底改变了微生物学研究.
- 在宿主细胞内量化基因删除突变物生存对于理解细菌病原性至关重要.
- 现有的方法往往需要特定的选择性标记,限制了它们的适用性.
研究的目的:
- 提出一种新的,独立于标记物的方法,用于量化基因删除突变者在细胞内环境中的净生存率.
- 为了验证这个新的量化技术的准确性和可重复性.
主要方法:
- 利用了来自基因删除突变体的基因组DNA的标准化Illumina短读测序.
- 开发了一种基于无特定选择性标记的测序数据来量化突变丰度的方法.
- 使用混合突变体的尖池和通过*S*感染实验验验证了该方法. 巨细胞中的胆体.
主要成果:
- 该方法准确量化了混合池中的突变物,与CFU确定没有显著差异 (p > 0.05).
- *S*的量化 *S*. 巨细胞中的Gallinarum突变与之前的研究结果一致.
- 证明了使用混合突变感染用于功能基因识别的可行性.
结论:
- 这种基于全基因组测序的方法提供了一种简单,标准化和准确的方法来量化细胞内突变物生存率.
- 这种方法消除了对选择性标记物的需求,增加了实验灵活性.
- 该方法在各种实验室中很容易实现,在微生物学研究中有更广泛的应用.
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