关于检测和分子表征的第一份报告在蒙古的天体病毒
Jessica L Kulberg1, Anne A M J Becker1, Yashpal S Malik2
1Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis.
Viruses
|August 29, 2024
概括
在圣基茨岛上,在28.3%的看似健康的小印度蒙古斯群体中检测到天体病毒 (AstVs). 遗传学分析表明,这些病毒可能起源于下脊椎动物,这表明Astroviridae内的广泛宿主范围和多样性.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 生态生态学 生态生态学
背景情况:
- 众所周知,天体病毒 (AstV) 感染了广泛的宿主,包括鸟类和哺乳动物.
- 在野生动物中,特别是岛屿生态系统中,AstVs的宿主范围和遗传多样性仍然不完全理解.
研究的目的:
- 调查圣基茨岛小型印度蒙古斯 (Urva auropunctata) 中的星际病毒的存在和遗传多样性.
- 通过遗传学分析来描述检测到的天体病毒.
主要方法:
- 一种泛天体病毒 (AstV) RT-hemi-nested PCR测定被用于病毒检测.
- 部分RNA依赖RNA聚合酶 (RdRp) 基因序列被放大和分析.
- 遗传学分析和推断的氨基酸 (aa) 身份被用于分子特征.
主要成果:
- 在28% (15/53) 的蒙古斯中检测到天体病毒.
- 检测到的蒙古斯天体病毒 (Mon-AstVs) 形成了两个截然不同的基因组.
- 蒙-AstVs与其他宿主物种的天体病毒具有较低的序列相同性,并聚集在爬行动物/两动物天体病毒附近.
结论:
- 这项研究报告了首次检测和分子表征在蒙古的天体病毒.
- 遗传学发现表明,Mon-AstVs的潜在起源来自下脊椎动物.
- 结果突出了Astroviridae家族显著的遗传多样性和广泛的宿主范围.
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