在巨型病毒中,ubiquitin,细胞骨和囊泡贩运机械的演变
Sangita Karki1, Frank O Aylward1,2
1Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA.
Journal of virology
|February 11, 2025
概括
巨型病毒 (Nucleocytoviricota) 在整个进化过程中多次获得细胞基因. 这项研究揭示了复杂的基因转移模式,表明病毒与真核宿主有动态相互作用.
科学领域:
- 病毒学 病毒学
- 进化生物学 进化生物学
- 基因组学就是基因组学.
背景情况:
- 核细胞病毒,或巨型病毒,感染多种类型的真核生物,并拥有大型基因组.
- 这些病毒经常编码参与细胞过程的真核体特征蛋白 (ESP).
- 许多病毒ESP的进化历史和基因获取时间在很大程度上是未知的.
研究的目的:
- 研究核细胞病毒中特定的病毒编码ESP (vESP) 的分布和进化史.
- 了解这些病毒中基因获取事件的模式和时间.
- 阐明核细胞病毒及其真核宿主之间的共同进化动态.
主要方法:
- 病毒编码的真核体特征蛋白 (vESPs) 的遗传学分析.
- 进行比较基因组学,以追踪vESP在不同病毒系中的分布.
- 对与真核生物进化时间线相关的基因获取事件的分析.
主要成果:
- 大多数涉及囊泡性贩运的vESP都被核细胞病毒独立地多次获得.
- 与细胞骨和泛素系统相关的病毒蛋白显示出复杂的进化模式.
- 基因收购发生在各种时间点,无论是古代还是最近,在真核生物超群出现后.
结论:
- 核细胞病毒表现出动态的基因获取,通过古代和最近的水平基因转移获得细胞基因.
- 这些获取的时间和频率提供了关于它们在病毒感染期间的功能作用的见解.
- 这突显了病毒和真核生物共同进化的复杂相互作用,扩大了对病毒适应性的理解.
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