在白种中发现了两种新型乳头瘤病毒
Youyou Li1, Meifang Xiao2, Yun Zhang1
1Hainan Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, China.
Frontiers in microbiology
|August 11, 2023
概括
在白中发现了两种新型乳头瘤病毒 (PVs),提高了对PV遗传多样性及其对种群的影响的理解. 这些发现有助于海洋哺乳动物健康研究.
科学领域:
- 兽医病毒学 兽医病毒学
- 海洋哺乳动物健康
- 基因组学就是基因组学.
背景情况:
- 众所周知,乳头瘤病毒 (PVs) 在各种动物物种中会引起高可塑性病变.
- 紫外线是人类和动物某些癌症的重要危险因素.
- 在海洋哺乳动物中的遗传多样性和PVs的流行程度仍然不完全理解.
研究的目的:
- 在白中识别和表征新型乳头瘤病毒.
- 为了确定在采样的白种群中这些新型PVs的流行率.
- 了解这些新型PVs在Papillomaviridae家族中的遗传关系.
主要方法:
- 使用下一代测序 (NGS) 来识别白的新型PV菌株.
- 完整的病毒基因组被放大,并选晚期基因 (L1) 来确定感染率.
- 对氨基酸序列的遗传学分析进行,以建立进化关系.
主要成果:
- 两种新型乳头瘤病毒菌株,PV-HMU-1和PV-HMU-2,在极地海洋公园的白中被发现.
- 青岛PV-HMU-1的感染率为50%,大连PV-HMU-2的感染率为71%.
- 遗传学分析表明,这些新型PVs在海豚PV集群中形成了独特的分支,被提议作为"Firstpapillomavirinae"下的新物种.
结论:
- 发现PV-HMU-1和PV-HMU-2扩大了已知的乳头瘤病毒的多样性.
- 这些发现提供了关于光伏对白健康和种群动态的影响的关键见解.
- 这项研究有助于更广泛地了解海洋哺乳动物的病毒进化.
相关概念视频
Viral Recombination
23.5K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.5K
Retroviruses
12.4K
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
12.4K


