经济甲壳动物中 RNA 病毒的巨大多样性。

IF 5 2区 生物学 Q1 MICROBIOLOGY
mSystems Pub Date : 2024-10-22 Epub Date: 2024-09-27 DOI:10.1128/msystems.01016-24
Xuan Dong, Fanzeng Meng, Chengyan Zhou, Juan Li, Tao Hu, Yiting Wang, Guohao Wang, Jingfei Luo, Xuan Li, Shufang Liu, Jie Huang, Weifeng Shi
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引用次数: 0

摘要

甲壳类动物是全球重要的食物来源,在海洋生态系统中具有重要的生态地位。然而,我们对甲壳类尤其是经济甲壳类RNA病毒的多样性和进化的了解仍然有限。在此,我们在2016-2021年期间从中国24个地点采集了106批次经济甲壳动物,包括13个物种。我们发现了 90 种 RNA 病毒,其中 69 种与已知病毒不同。病毒转录本被归入18个不同的病毒科/支系和3个未分类组。在鉴定出的病毒中,5种是双链RNA病毒,74种是正义单链RNA(+ssRNA)病毒,9种是负义单链RNA(-ssRNA)病毒,2种属于未分类的RNA病毒组。系统进化分析表明,甲壳类病毒经常与无脊椎动物中发现的病毒聚在一起。值得注意的是,大多数甲壳类病毒与同一食物链或水生生态位上不同宿主物种的病毒关系密切。此外,新发现的皮卡病毒的基因组结构表现出显著的多样性。我们的研究大大扩展了重要经济甲壳类动物体内病毒的多样性,为全球水产养殖业中传播的病原体的风险评估提供了重要数据:重要意义:这项研究深入探讨了甲壳类动物中的 RNA 病毒这一未知领域,甲壳类动物不仅对全球食物供应至关重要,而且在海洋生态系统中也发挥着关键作用。研究以经济甲壳类动物为重点,发现了 90 种 RNA 病毒,其中 69 种可能是科学界新发现的病毒,凸显了这些海洋生物体内未知病毒的巨大多样性。研究结果表明,这些病毒通常与其他无脊椎动物体内的病毒有关,而且往往与同一食物网或栖息地内物种的病毒关系密切。这表明,病毒在不同海洋物种之间的移动可能比以前想象的更为频繁。发现如此种类繁多的病毒,特别是新发现的皮卡病毒的不同基因组结构,是了解甲壳动物病毒学的一个重大飞跃。这些知识对于管理水产养殖中的疾病风险和维持海洋生态系统的平衡至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enormous diversity of RNA viruses in economic crustaceans.

Crustaceans are important food sources worldwide and possess significant ecological status in the marine ecosystem. However, our understanding of the diversity and evolution of RNA viruses in crustaceans, especially in economic crustaceans, is still limited. Here, 106 batches of economic crustaceans including 13 species were collected from 24 locations in China during 2016-2021. We identified 90 RNA viruses, 69 of which were divergent from the known viruses. Viral transcripts were assigned to 18 different viral families/clades and three unclassified groups. Among the identified viruses, five were double-stranded RNA viruses, 74 were positive-sense single-stranded RNA (+ssRNA) viruses, nine were negative-sense single-stranded RNA (-ssRNA) viruses, and two belonged to an unclassified RNA virus group. Phylogenetic analyses showed that crustacean viruses were often clustered with viruses identified from invertebrates. Remarkably, most crustacean viruses were closely related to those from different host species along the same food chain or ecological aquatic niche. In addition, the genome structures of the newly discovered picornaviruses exhibited remarkable diversity. Our study significantly expands the diversity of viruses in important economic crustaceans and provides essential data for the risk assessment of the pathogens spreading in the global aquaculture industry.

Importance: The study delves into the largely uncharted territory of RNA viruses in crustaceans, which are not only vital for global food supply but also play a pivotal role in marine ecosystems. Focusing on economic crustaceans, the research uncovers 90 RNA viruses, with 69 being potentially new to science, highlighting the vast unknown viral diversity within these marine organisms. The findings reveal that these viruses are often related to those found in other invertebrates and tend to share close relationships with viruses from species within the same food web or habitat. This suggests that viruses may move between different marine species more frequently than previously thought. The discovery of such a wide variety of viruses, particularly the diverse genome structures of newly identified picornaviruses, is a significant leap forward in understanding the crustacean virology. This knowledge is crucial for managing disease risks in aquaculture and maintaining the balance of marine ecosystems.

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来源期刊
mSystems
mSystems Biochemistry, Genetics and Molecular Biology-Biochemistry
CiteScore
10.50
自引率
3.10%
发文量
308
审稿时长
13 weeks
期刊介绍: mSystems™ will publish preeminent work that stems from applying technologies for high-throughput analyses to achieve insights into the metabolic and regulatory systems at the scale of both the single cell and microbial communities. The scope of mSystems™ encompasses all important biological and biochemical findings drawn from analyses of large data sets, as well as new computational approaches for deriving these insights. mSystems™ will welcome submissions from researchers who focus on the microbiome, genomics, metagenomics, transcriptomics, metabolomics, proteomics, glycomics, bioinformatics, and computational microbiology. mSystems™ will provide streamlined decisions, while carrying on ASM''s tradition of rigorous peer review.
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