细胞基因组数据揭示了广泛的宿主范围的米鲁病毒
Hongda Zhao1, Lingjie Meng1, Hiroyuki Hikida1
1Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
Current biology : CB
|May 28, 2024
概括
米鲁病毒是一种新型病毒群,可能会感染广泛的真核生物,扩展到海洋微真核生物之外. 这项研究确定了新的米鲁病毒标记基因和基因组,揭示了更大的病毒多样性.
科学领域:
- 病毒学 病毒学
- 欧核生物基因组学
- 微生物生态学 微生物生态学
背景情况:
- 最近通过海洋转基因组学发现了一种新型病毒群,即米鲁病毒.
- 假设米鲁病毒可以弥合瓦里德纳维利亚和杜普洛德纳维利亚双链DNA病毒领域之间的进化差距.
- 以前的研究表明,米鲁病毒会感染海洋微核细胞,但它们的宿主范围基本上是未知的.
研究的目的:
- 通过在真核生物基因组组合中寻找它们的标记基因来识别米鲁病毒的潜在宿主.
- 描述米鲁病毒及其宿主的多样性和进化关系.
主要方法:
- 选了 1,901 个真核生物基因组组件,以寻找米鲁斯病毒标记基因.
- 分析了主要囊蛋白 (MCP) 序列,以与已知的米鲁病毒相似.
- 对已识别的MCP序列进行了遗传学分析.
- 在特定的真核宿主中识别了完整的圆形mirusviral基因组.
主要成果:
- 在227个真核生物属和8个超群的915个组合中发现了Mirusvirus标记序列.
- 假定宿主居住在不同的环境中,不仅限于海洋环境.
- 鉴定了85个与已知的米鲁病毒密切相关的MCP序列,形成了新的家族遗传分支.
- 在 * Schizochytrium sp. 中发现了三个圆形的米鲁病毒基因组. * 和 * 奥斯特里奥比乌姆奎克蒂.
- 有证据表明,米鲁病毒感染可以改变宿主基因组.
结论:
- 米鲁病毒感染的真核生物的范围比以前理解的更广.
- 线虫病毒的多样性比目前报告的要大.
- 弥鲁病毒代表着一个显著而广泛的病毒群体,具有多样化的宿主和进化联系.
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