宿主内部共存的SARS-CoV-2参考基因组菌株通过详尽的计算搜索发现
Xinhui Cai1, Tian Lan1, Pengyao Ping1
1Data Science Institute and School of Computer Science, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, NSW 2007, Australia.
Viruses
|May 27, 2023
概括
这项研究引入了一种计算方法,使用RNA测序数据在宿主中检测共存的SARS-CoV-2菌株. 该方法在参考和废水样本中确定了多种菌株,有助于疫苗的开发.
科学领域:
- 病毒学和生物信息学
- 基因组学和分子生物学
背景情况:
- 由SARS-CoV-2引起的COVID-19流行病对全球健康产生了影响.
- 在mRNA疫苗设计中,SARS-CoV-2参考基因组至关重要.
- 了解病毒宿主内部的多样性对于公共卫生和疫苗有效性至关重要.
研究的目的:
- 开发和介绍一种计算方法,用于识别与宿主内部共存的SARS-CoV-2菌株.
- 分析用于参考基因组组装的RNA测序数据的病毒多样性.
- 调查已识别的菌株的遗传学关系和蛋白质结合亲缘关系.
主要方法:
- 一个五步计算工作流:读取提取,错误校正,多样性识别,基因分析和蛋白质结合亲和度评估.
- 该方法应用于来自原始SARS-CoV-2参考基因组样本的RNA测序数据.
- 对废水样本和口病病毒 (FMDV) 数据工作流程的验证.
主要成果:
- 该方法在参考基因组样本和加利福尼亚废水样本中成功识别了共存的SARS-CoV-2菌株.
- 在口病病毒 (FMDV) 样本中也检测到了宿主内部的多样性,证明了工作流的多功能性.
- 分析提供了与SARS-CoV-2,SARS-CoV,VOCs和相关冠状病毒识别的菌株的结合亲和力和家族遗传关系的见解.
结论:
- 开发的计算方法有效地识别了从短读测序数据中共存的病毒菌株和宿主内部的多样性.
- 这些发现凸显了宿主中多个SARS-CoV-2菌株的存在及其进化联系.
- 这项研究支持病毒进化研究,疫苗开发和针对冠状病毒的治疗策略的进展.
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