大规模的基因组重组促进了Saccharomyces cerevisiae中的SCRaMbLE
Li Cheng1, Shijun Zhao1,2, Tianyi Li1,3
1Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
Nature communications
|January 26, 2024
概括
通过LoxP介导进化 (SCRaMbLE) 进行合成染色体重组和修改,可以在酵母中实现多功能基因组重组. 一种新的菌株SparLox83R增强了这种工具,用于加速菌株工程和研究基因组后果.
科学领域:
- 合成生物学 合成生物学
- 基因组学就是基因组学.
- 酵母遗传学 酵母遗传学
背景情况:
- 通过LoxP介导进化 (SCRaMbLE) 进行合成染色体重组和修改是诱导基因组重组的强大工具.
- 以前的限制包括缺乏含有所有16个合成染色体的酵母菌株.
研究的目的:
- 开发一种酵母菌株 (SparLox83R) 具有分布式loxPsym位点,用于增强SCRaMbLE.
- 研究SCRaMbLE在产生多样化的基因组重组和加速特征演变中的实用性.
主要方法:
- 构建了SparLox83R酵母菌株,在16个染色体上有83个loxPsym位点.
- 应用SCRaMbLE来诱导全基因组重组,包括染色体间事件.
- 对SCRaMbLEd菌株的分析,包括转录和3D基因组结构影响.
主要成果:
- SparLox83R促进了多功能,全基因组重组,包括染色体间事件.
- 将SCRaMbLE与合成染色体结合在异质双体体中增加了基因组多样性并加速了特征演变.
- 在SCRaMbLEd菌株中的基因组重组扰乱了转录组和3D基因组结构,影响了像诺可达耐受性这样的表型.
结论:
- 具有稀疏分布的loxPsym位点 (SparLox83R) 的基因组是研究基因组重组后果的有力工具.
- 酵母中的SCRaMbLE,特别是合成染色体,加速了菌株工程和特征进化.
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