Viral metagenomics reveals the RNA viral composition of herbivorous wildlife on the Qinghai-Tibet Plateau
文献类型: 外文期刊
作者: Yue Chen;Shiyin Huang;Shuang Zhang;Haixuan Wang;Xiaofei Song;Likai Ji;Quan Shen;Shixing Yang;Yuwei Liu;Xiaochun Wang;Ping Wu;Hongfeng Yang;Tongling Shan;Xiaolong Wang;Wen Zhang
作者机构:
关键词: Diversity;Herbivorous wildlife;Metagenomic;RNA virome
期刊名称: Virology
ISSN: 0042-6822
年卷期: 2026 年 617 卷
页码:
收录情况: SCIE(2025版)
摘要: RNA viruses, a widely distributed group of pathogens in nature, possess exceptionally high genetic diversity and rapid evolutionary potential. High-altitude ecosystems, represented by the Qinghai-Tibet Plateau, with their unique environmental conditions, may harbor distinct viral communities. However, there remains a lack of systematic understanding regarding the composition and distribution of RNA viruses in wildlife under such extreme environments. In this study, a total of 741 fecal samples were collected from three regions on the Qinghai-Tibet Plateau, and viral metagenomics technology was used to reveal the composition and diversity of RNA viruses in the fecal samples of six species of herbivorous wild animals on the plateau. We identified a substantial abundance of RNA viruses, classified into 18 distinct viral families. Furthermore, the structure of the viral communities varied among different host species. Through assembly, 28 viral sequences belonging to the families Astroviridae, Picornaviridae, Picobirnaviridae, Tobaniviridae, and Caliciviridae were identified. Phylogenetic analysis revealed that the newly identified viral strains share close relationships with viruses found in humans, marmots, and other mammals. The results indicate that wildlife in this region are reservoirs of unidentified RNA viruses, some of which may pose potential threats to public health and the animal husbandry. These findings provide crucial scientific evidence and data support for future virus surveillance, ecological risk assessment, and the prevention and control of emerging infectious diseases at their source.
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