Abstract
Trees and shrubs provide important ecological services. However, few studies have surveyed the virome in trees and shrubs. In this study, we discovered a new positive-sense RNA virus originating from Viburnum odoratissimum, which we named "Vo narna-like virus". The complete genome of Vo narna-like virus is 3,451 nt in length with an open reading frame (ORF) encoding the RNA-dependent RNA polymerase (RdRP) protein. Phylogenetic analysis placed this virus within the betanarnavirus clade, sharing 53.63% amino acid sequence identity with its closest relative, Qingdao RNA virus 2. The complete sequence of the virus was confirmed by rapid amplification of cDNA ends (RACE) and Sanger sequencing. Small interfering RNA (siRNA) analysis indicated that this virus interacts with the RNA interference (RNAi) pathway of V. odoratissimum. This is the first report of a narnavirus in V. odoratissimum.
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Data availability
The genome sequence and RdRP protein sequence of Vo narna-like virus are available in the NCBI database under the accession numbers OR965524.1 and WQM87268.1. The transcriptome sequencing data and siRNA sequencing data are available at NCBI under the BioProject ID PRJNA1053647. The scripts used in this study are available on GitHub (https://github.com/Gyoungwe/novel_virus_analysis). Sequencing data, Trinity assembly, and BLASTx results are available on Zenodo (https://zenodo.org/doi/https://doi.org/10.5281/zenodo.10208202).
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Acknowledgements
We thank Jihyun Won for helpful comments. This work was supported by the High-performance Computing Center, Institute of Plant Virology, Ningbo University, Ningbo, China.
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This work was funded by the Ningbo Yongjiang grant (2022A-220-G).
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Yangwei Gao, Zhongtian Xu, and Yiyuan Li designed the research. Yangwei Gao, Zhongtian Xu, Ping Li, Xiaodi Hu, and Yiyuan Li performed the research. The first draft of the manuscript was written by Yangwei Gao and Yiyuan Li. All authors commented on and helped to revise previous versions of the manuscript. All authors read and approved the final manuscript.
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Gao, Y., Xu, Z., Li, P. et al. Complete genome analysis of a novel narnavirus in sweet viburnum (Viburnum odoratissimum). Arch Virol 169, 90 (2024). https://doi.org/10.1007/s00705-024-06000-y
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DOI: https://doi.org/10.1007/s00705-024-06000-y