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The diversity of viral community in Sogatella furcifera revealed by meta-transcriptomics

文献类型： 外文期刊

作者： Wang, Jihan 1 ; Zhu, Yu 1 ; Li, Dongyuan 1 ; Zheng, Xinyue 1 ; Chai, Chunlian 1 ; Zhang, Jie 2 ; Wu, Jianguo 1 ; Hu, Qun 1 ; Zhao, Shanshan 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Coll Plant Protect, Ctr Genet Improvement, Vector Borne Virus Res Ctr,State Key Lab Agr & For, Fuzhou, Peoples R China

2.Yunnan Acad Agr Sci, Inst Biotechnol & Germplasm Resources, Yunnan Prov Key Lab Agr Biotechnol, Kunming, Peoples R China

关键词： RNA viromes; Sogatella furcifera; Sobelivirales; vsiRNA; SoSNV1

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：4.5； 五年影响因子：5.2 ）

ISSN：

年卷期： 2025 年 16 卷

页码：

收录情况： SCI

摘要： Introduction Metagenomic analyses has significantly advanced our understanding of viral evolution and their functions within organismal biology. In particular, exploring the virome of agricultural pests like the white-backed planthopper (WBPH) is essential for understanding their role as potential virus vectors and developing effective pest management strategies.Methods To explore viral diversity, we collected white-backed planthoppers (WBPHs) from nine sites spanning four Chinese provinces (Liaoning, Fujian, Guangxi, and Yunnan) and performed metagenomic sequencing.Results Our analysis identified 11 novel viruses belonging to 7 viral families, encompassing positive-sense single-stranded RNA (+ssRNA), negative-sense single-stranded RNA (-ssRNA), and double-stranded RNA (dsRNA) viruses. Remarkably, eight of the southern Chinese sites, excluding one in Liaoning province, contained a previously undiscovered Sobelivirales virus. Using rapid-amplification of cDNA ends (RACE), we determined the complete genome sequence of this novel Sobelivirales virus. Subsequent analyses of its encoded proteins, potential structural domains, and phylogenetic relationships suggested that it may belong to a new genus within the Sobelivirales. Small RNA sequencing confirmed viral replication in WBPH by revealing that virus-derived small interfering RNAs (vsiRNAs) were primarily 21 and 22 nucleotides long.Discussion Our results have important implications for understanding virus carriage in WBPHs, evaluating their role as virus vectors, and informing the development of improved pest management strategies. Furthermore, this study highlights the power of metagenomics in uncovering novel viruses and expanding our knowledge of viral diversity.

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