A group of segmented viruses contains genome segments sharing homology with multiple viral taxa

Metaviromics has greatly expanded our understanding of viral diversity, including segmented or multipartite RNA viruses with genomes composed of multiple segments. However, virome analyses often fail to detect genomic segments beyond the RdRP, likely due to their low similarity to known viruses. We...

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Vydáno v:	Journal of virology Ročník 99; číslo 7; s. e0033225
Hlavní autoři:	Huang, Huang, Zhang, Zhongmei, Pang, Xidan, Tang, Qing, Xiao, Xueqiong, Cheng, Jiasen, Fu, Yanping, Lin, Yang, Chen, Tao, Li, Bo, Zhang, Lei, Jiang, Daohong, Xie, Jiatao
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	United States American Society for Microbiology 22.07.2025
Témata:	Evolution, Molecular Fungal Viruses - classification Fungal Viruses - genetics Fusarium - virology Genetic Diversity and Evolution genome segmentation Genome, Viral mycovirus Phylogeny RNA Viruses - classification RNA Viruses - genetics RNA, Viral - genetics rod-shaped virion segmented virus Viral Proteins - genetics Virology mycovirus genome segmentation rod-shaped virion segmented virus
ISSN:	0022-538X, 1098-5514, 1098-5514
On-line přístup:	Získat plný text
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Popis
Shrnutí:	Metaviromics has greatly expanded our understanding of viral diversity, including segmented or multipartite RNA viruses with genomes composed of multiple segments. However, virome analyses often fail to detect genomic segments beyond the RdRP, likely due to their low similarity to known viruses. We characterized a group of segmented, potentially multipartite, +ssRNA viruses, with Fusarium asiaticum vivivirus 1 as a representative; most of these viruses likely infect fungi. Through structural and evolutionary analysis of the five core segments of viviviruses, our findings highlight key aspects of vivivirus evolution, including genome segmentation, gene and domain duplications, and segments with multiple evolutionary origins.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Huang Huang and Zhongmei Zhang contributed equally to this article. The author order was determined based on alphabetical order of surname. The authors declare no conflict of interest.
ISSN:	0022-538X 1098-5514 1098-5514
DOI:	10.1128/jvi.00332-25