在北大西洋短飞和鱼中发现了新型的循环病毒
Matthew D De Koch1, Simona Kraberger1, Russell Fielding2
1The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, USA.
Virology
|December 9, 2025
概括
在鱼和鱼中发现了新的循环病毒,扩大了这些海洋哺乳动物病毒的已知多样性. 这些发现突出了鱼和猪之间潜在的免疫系统相似之处.
科学领域:
- 病毒学 病毒学
- 海洋生物学 海洋生物学
- 基因组学就是基因组学.
背景情况:
- 环状病毒家族包括小的,单链DNA病毒感染动物,导致重大疾病.
- 虽然循环病毒在陆地脊椎动物中已知,但它们在海洋动物中存在的理解较少.
- 大基因组研究最近在各种陆地物种中发现了循环病毒.
研究的目的:
- 研究海洋脊椎动物,特别是海豚类动物中循环病毒的存在和多样性.
- 在短飞行员和鱼中发现的新型循环病毒的特征.
主要方法:
- 高通量测序 (HTS) 用于在档案的海豚组织样本中检测循环病毒.
- 根据HTS数据设计了特定的原始配对,以恢复完整的病毒基因组.
- 进行了全基因组对对核酸标识和囊蛋白分析.
主要成果:
- 从短飞行员 (n=5) 和鱼 (n=2) 中恢复了七个完整的循环病毒基因组.
- 这些名为shofincircovirus和orcincircovirus的新型病毒代表了新的物种,其基因组与已知的circoviruses相同性<65.4%.
- 这标志着在北大西洋中首次检测到鱼圈病毒.
- 分析揭示了囊蛋白结构中的独特细化,可能与免疫表位相关.
结论:
- 海豚类循环病毒扩大了海洋脊椎动物中已知的循环病毒的多样性.
- 这些发现表明,鱼和猪 (猪) 免疫系统的进化压力类似.
- 这项研究为海洋哺乳动物中的循环病毒演化和宿主-病原体相互作用提供了新的见解.
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