Meta-Transcriptomic Analysis Reveals Novel RNA Viruses in Polychaetes Perinereis

文献类型： 外文期刊

第一作者： Luo, Jingfei

作者： Luo, Jingfei;Zhou, Chengyan;Wang, Guohao;Huang, Jie;Dong, Xuan;Luo, Jingfei;Zhang, Fan;Zhou, Chengyan;Meng, Fanzeng;Wang, Guohao;Qiu, Liang;Huang, Jie;Dong, Xuan;Shi, Weifeng;Dong, Xuan

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关键词： RNA viruses; Perinereis; meta-transcriptomic; virome; aquaculture

期刊名称：VETERINARY SCIENCES （ 影响因子：2.0； 五年影响因子：2.2 ）

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年卷期： 2024 年 11 卷 6 期

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收录情况： SCI

摘要： Viruses present a significant challenge to the sustainable growth of the aquaculture sector. Perinereis, a valuable live-feed source in aquaculture, carries the risk of harboring unknown viruses, potentially jeopardizing the biosecurity of aquatic organisms. Despite this risk, there is a notable absence of research investigating novel viruses in Perinereis using meta-transcriptomic sequencing techniques. Therefore, it becomes imperative to explore the viral diversity within Perinereis. In this report, 12 previously unidentified viruses was documented in two distinct Perinereis species through meta-transcriptomic sequencing. These newly identified viruses were classified into four major viral families, shedding light on the intricate viral landscape within Perinereis. By unveiling these novel viruses, this research contributes to a broader knowledge base of the viral ecology in Perinereis, offering valuable insights into the potential risks and impacts associated with Perinereis in aquaculture settings. Such findings also highlight the need for enhancing biosecurity measures and disease management strategies within the aquaculture industry. Perinereis species are essential benthonic animals in coastal ecosystems and have significant roles as live feed in aquaculture, owing to their high-protein and low-fat nutritional profile. Despite their ecological importance, the viral communities associated with these organisms need to be better understood. In this study, we generated 2.6 x 10(8) reads using meta-transcriptomic sequencing and de novo assembled 5.3 x 10(3 )virus-associated contigs. We identified 12 novel RNA viruses from two species, Perinereis aibuhitensis and P. wilsoni, which were classified into four major viral groups: Picobirnaviridae, Marnaviridae, unclassified Picornavirales, and unclassified Bunyavirales. Our findings revealed the hidden diversity of viruses and genome structures in Perinereis, enriching the RNA virosphere and expanding the host range of Picobirnaviridae, Marnaviridae, and Bunyavirales. This study also highlighted the potential biosecurity risk of the novel viruses carried by Perinereis to aquaculture.

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