伤寒微生物:快速准确的血统识别和抗菌素耐药性基因定型,直接从伤寒热病原体Salmonella的序列读取
Danielle J Ingle1, Jane Hawkey2,3, Martin Hunt4,5,6,7
1The Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Australia.
bioRxiv : the preprint server for biology
|August 6, 2025
概括
Typhi Mykrobe是一种用于快速基因组监测沙门氏菌Typhi的新软件工具,可以更快地识别抗菌素耐药性和血统. 这个工具有助于改善全球的伤寒热病治疗和预防策略.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 传染性疾病 传染性疾病
背景情况:
- 伤寒热是由沙门氏菌Typhi引起的,每年导致1000万例疾病.
- 伤寒的抗菌素耐药性 (AMR) 需要基因组监测,以制定有效的治疗和疫苗接种策略.
- 现有的基因型化工具并没有针对牛津纳米孔技术 (ONT) 长时间读取的测序数据进行优化.
研究的目的:
- 介绍Typhi Mykrobe,一个命令行软件,用于快速Typhi基因类型.
- 启用对血统,AMR决定因素和等离子体复制物的测序读数的直接分析.
- 提供一个验证的工具,用于Typhi.的基因组监测.
主要方法:
- 开发了Typhi Mykrobe用于对测序读数进行直接分析.
- 使用Illumina数据与基于标准映射的方法进行验证的血统基因型鉴定.
- 评估了AMR和等离子体标记检测与基于组装的方法相比.
- 比较ONT和Illumina读取基因定型的性能.
主要成果:
- 泰菲菌菌与Illumina数据实现了99.8%的谱系基因型鉴定一致性.
- 与基于组装的方法相比,在AMR决定性检测方面证明了99.9%的一致性.
- 在ONT和Illumina读取基因型和AMR调用时显示出强烈一致 (>96%).
结论:
- Typhi Mykrobe提供了直接从Illumina和ONT读取Typhi的快速和敏感的基因型鉴定.
- 准确地分配GenoTyphi血统,检测AMR决定因素,并预测表型.
- 促进了改善的基因组监测,以控制伤寒热.
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