{"title":"Emergence of a natural reassortant between Shamonda and Sathuperi viruses of the species Orthobunyavirus schmallenbergense in Japan","authors":"Hisayuki Tomochi, Yuji Mekaru, Katsunori Murota, Misako Konishi, Rina Ikeda, Tohru Yanase","doi":"10.1007/s00705-025-06233-5","DOIUrl":null,"url":null,"abstract":"<div><p>The whole-genome sequences of orthobunyaviruses isolated from cattle reared on Yonaguni Island (the western-most point of Japan's territory) were determined. The sequences of their S and L RNA segments were observed to be almost identical to those of Shamonda virus (SHAV) isolates identified in Japan, whereas the sequences of their M RNA segments were very similar to those of Japanese isolates of Sathuperi virus (SATV). Our findings indicate that the two novel isolates are natural reassortants between SHAV and SATV, which share a genome segment organization similar to that of Schmallenberg virus. The nucleotide sequence of the 5' non-coding region of the novel isolates differs from those of previously sequenced SATV isolates, suggesting that the M RNA segments of the reassortants were not derived from SATV strains that were detected recently in Japan.</p></div>","PeriodicalId":8359,"journal":{"name":"Archives of Virology","volume":"170 2","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Virology","FirstCategoryId":"3","ListUrlMain":"https://link.springer.com/article/10.1007/s00705-025-06233-5","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"VIROLOGY","Score":null,"Total":0}
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Abstract
The whole-genome sequences of orthobunyaviruses isolated from cattle reared on Yonaguni Island (the western-most point of Japan's territory) were determined. The sequences of their S and L RNA segments were observed to be almost identical to those of Shamonda virus (SHAV) isolates identified in Japan, whereas the sequences of their M RNA segments were very similar to those of Japanese isolates of Sathuperi virus (SATV). Our findings indicate that the two novel isolates are natural reassortants between SHAV and SATV, which share a genome segment organization similar to that of Schmallenberg virus. The nucleotide sequence of the 5' non-coding region of the novel isolates differs from those of previously sequenced SATV isolates, suggesting that the M RNA segments of the reassortants were not derived from SATV strains that were detected recently in Japan.
期刊介绍：
Archives of Virology publishes original contributions from all branches of research on viruses, virus-like agents, and virus infections of humans, animals, plants, insects, and bacteria. Coverage spans a broad spectrum of topics, from descriptions of newly discovered viruses, to studies of virus structure, composition, and genetics, to studies of virus interactions with host cells, organisms and populations. Studies employ molecular biologic, molecular genetics, and current immunologic and epidemiologic approaches. Contents include studies on the molecular pathogenesis, pathophysiology, and genetics of virus infections in individual hosts, and studies on the molecular epidemiology of virus infections in populations. Also included are studies involving applied research such as diagnostic technology development, monoclonal antibody panel development, vaccine development, and antiviral drug development.Archives of Virology wishes to publish obituaries of recently deceased well-known virologists and leading figures in virology.
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