一种通用双重测序方法,用于准确检测体质突变
Shuvro P Nandi1,2,3, Yuhe Cheng1,2,3, Shams Al-Azzam1,2,3,4
1Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, USA.
bioRxiv : the preprint server for biology
|September 26, 2025
概括
现在可以通过UDSeq (双重测序) 来超准确检测罕见的体质突变. 这种低投入的方法实现了近乎完整的基因组覆盖,使得疾病和衰老中突变过程的精确分析成为可能.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 生物技术是生物技术.
背景情况:
- 精确检测罕见的体质突变对于理解人类疾病,衰老和环境影响至关重要.
- 目前的测序方法在错误率,基因组覆盖率和DNA输入要求方面存在局限性.
研究的目的:
- 开发一种新的双重测序协议 (UDSeq),用于超精确检测罕见的体位突变.
- 以最小的DNA输入来实现全面的基因组和外基因组分析.
主要方法:
- UDSeq协议结合了随机碎片,UMI结合和定量输入控制.
- 对人类精子进行基准测试,以估计错误率.
- 在细胞系和动物模型中应用,以分析暴露特定的突变模式.
主要成果:
- 据估计,UDSeq的误差率为每个基数对2.5×10^-9.
- 几乎完整的基因组/外基因组表现可以从100ppg的DNA中实现.
- UDSeq从异质人群中捕获突变特征,并重现特定暴露模式.
结论:
- UDSeq提供了一个可扩展的低输入平台,用于准确的体质突变分析.
- 与以前的双重连接方法相比,该协议提供了更好的效率和成本效益.
- UDSeq促进了跨物种的突变分析和突变过程的详细研究.
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