首个感染虫的努迪病毒的发现揭示了双向宿主-病毒基因转移
Carlos A Villarroel1, Angélica González-González2, Maximiliano Chamorro3
1Center for Biotechnology of Natural Resources (CENBio), Catholic University of Maule, Talca, Maule Region, Chile; School of Biotechnology Engineering, Catholic University of Maule, Talca, Maule Region, Chile; Millennium Institute for Integrative Biology (iBio), Santiago, Chile.
Journal of invertebrate pathology
|June 27, 2025
概括
这项研究报告了虫中第一个nudivirus感染,详细介绍了Neuquenaphis staryi.中的两种新物种 (NsNV-1和NsNV-2). 有证据表明双向水平基因转移,突出了这些病毒和它们的虫宿主之间的动态共同进化关系.
科学领域:
- 病毒学 病毒学
- 基因组学就是基因组学.
- 进化生物学 进化生物学
背景情况:
- 裸体病毒是感染无脊椎动物的双链DNA病毒.
- 之前的基因组研究表明,虫中存在努迪病毒感染,但没有发现病毒.
- 虫 (Hemiptera:Aphididae) 是一个重要的农业害虫.
研究的目的:
- 为了描述感染虫Neuquenaphis staryi的努迪病毒的完整基因组序列.
- 在虫种群中调查努迪病毒的流行率和进化关系.
- 提供第一个关于虫中努迪病毒感染的记录.
主要方法:
- 来自Neuquenaphis staryi.的努迪病毒的全基因组测序.
- 进行比较基因组学,分析核酸身份和遗传学定位.
- 在自然虫种群中的流行率评估.
主要成果:
- 确定了两种新型努迪病毒Nsnv-1和Nsnv-2的完整基因组序列.
- NsNV-1和NsNV-2共享98%的核酸相同性,属于Alphanudivirus属.
- 在自然人群中,NsNV-1的患病率是NsNV-2的16倍;并发病没有.
- 发现了nudivirus和虫之间的双向水平基因转移的证据.
结论:
- 这项研究介绍了第一个证实在虫中的nudivirus感染.
- 这些发现揭示了 nudiviruses 和虫之间的动态共同进化历史,包括横向的基因转移.
- 这项研究扩大了已知的努迪病毒宿主范围,并加深了对昆虫病毒相互作用的理解.
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