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Lynnette C Goatley¹, Graham Freimanis¹, Chandana Tennakoon¹

¹The Pirbright Institute, Ash Road, Pirbright, Woking, Surrey, United Kingdom.

|March 21, 2024

概括

来自喀麦隆的非洲猪瘟病毒 (ASFV) 全基因组序列揭示了新的遗传标记. 这些发现增强了用于跟踪西非和全球ASFV的分子流行病学.

科学领域:

兽医病毒学兽医病毒学
分子流行病学分子流行病学
基因组学就是基因组学.

背景情况:

非洲猪瘟 (ASF) 是一种由非洲猪瘟病毒 (ASFV) 引起的全球性猪病,它是一种大型双链DNA病毒.
目前的ASFV分子流行病学依赖于保留和可变区域的有限测序,这些区域演变缓慢.
几十年来,ASFV一直在西非流行,这表明非传统地区的基因组变化已经累积.

研究的目的:

分析1982年,1994年和2018年喀麦隆疫情中ASFV分离的全基因组序列.
识别新的遗传变异,包括单核酸多态 (SNPs) 和插入删除 (indels).
评估这些新型变异对改善西非ASFV分子追踪的有用性.

主要方法:

来自喀麦隆的三个ASFV分离体的全基因组测序.
生物信息分析用于识别单核酸多态 (SNP) 和插入删除 (indels).
与现有的ASFV基因组序列进行比较,以确定新的遗传标记.

主要成果:

从喀麦隆的分离物 (1982,1994,2018) 中获得了三个完整的ASFV基因组序列.
在ASFV基因组中发现了新的SNP和indels.
这些变异是在通常不是标准分子流行病学方法的目标地区发现的.

结论:

发现的新型遗传变异为ASFV分子流行病学提供了有价值的新标记.
这些标记可以增强跟踪和了解ASFV的演变和传播,特别是在西非.
这项研究扩展了ASFV的基因组数据,从一个历史上代表性不足的地区.

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