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Wang L, Zhang G, Bu S, Lin Z, Wu J, Yan F, Peng J. Development of a pod pepper vein yellows virus-based expression vector for the production of heterologous protein or virus like particles in Nicotiana benthamiana. Virus Res 2025; 355:199559. [PMID: 40118217 PMCID: PMC11979914 DOI: 10.1016/j.virusres.2025.199559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2025] [Revised: 03/13/2025] [Accepted: 03/17/2025] [Indexed: 03/23/2025]
Abstract
Plant viruses are emerging as a compelling alternative system for the heterologous production of pharmaceutical proteins, offering advantages in scalability, cost-effectiveness, and biological safety over traditional expression systems. They are increasingly recognized as effective platforms for biomedical applications, frequently used in the expression of human viral proteins and the display of peptides or proteins. The pod pepper vein yellows virus (PoPeVYV), classified within the genus Polerovirus of the Solemoviridae family, can substantially increase viral titers when co-infected with pod pepper vein yellows virus-associated RNA (PoPeVYVaRNA). This mixed infection methodology facilitates the formation of rod-shaped virus-like particles (VLPs), wherein modified green fluorescent protein (mGFP) is fused to the C-terminus of the coat protein (CP) from the pepper mild mottle virus (PMMoV). Notably, the expression of hepatitis B surface antigen (HBsAg) demonstrates a marked preference for plant viruses, allowing for enhanced expression via the PoPeVYV mixed infection system in Nicotiana benthamiana. Consequently, the PoPeVYV-based vector presents a promising alternative for the high-level production of heterologous proteins and rod-shaped VLPs in plants.
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Affiliation(s)
- Lujia Wang
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China
| | - Ge Zhang
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China
| | - Shan Bu
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China
| | - Zina Lin
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China
| | - Jian Wu
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China
| | - Fei Yan
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China.
| | - Jiejun Peng
- State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China.
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Chen Y, Chen G, Yu J, Zhou Y, Fei S, Chen H, Wu J, Fu S. Genomic, Evolutionary, and Pathogenic Characterization of a New Polerovirus in Traditional Chinese Medicine Viola philippica. Viruses 2025; 17:114. [PMID: 39861903 PMCID: PMC11768663 DOI: 10.3390/v17010114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2024] [Revised: 01/10/2025] [Accepted: 01/14/2025] [Indexed: 01/27/2025] Open
Abstract
Viola philippica, a medicinal herbaceous plant documented in the Chinese Pharmacopoeia, is a promising candidate for research into plant-derived pharmaceuticals. However, the study of newly emerging viruses that threaten the cultivation of V. philippica remains limited. In this study, V. philippica plants exhibiting symptoms such as leaf yellowing, mottled leaves, and vein chlorosis were collected and subjected to RNA sequencing to identify potential viral pathogens. A novel polerovirus, named Viola Philippica Polerovirus (VPPV), was identified in V. philippica. VPPV possesses a linear, positive-sense, single-stranded RNA genome consisting of 5535 nucleotides (nt) and encodes seven highly overlapping open reading frames (ORFs). Two potential recombination events were identified within ORF2, ORF3a, and ORF3, providing insights into the genetic diversity and evolution history of this novel polerovirus. An infectious cDNA clone of VPPV was successfully constructed and shown to infect Nicotiana benthamiana. Using a PVX-based heterologous expression system, the VPPV P0 protein was shown to trigger a systemic hypersensitive response (HR)-like reaction in N. benthamiana, indicating that P0 functions as the main pathogenicity determinant. These findings contributed to the detection and understanding of pathogenic mechanisms and control strategies for VPPV in V. philippica.
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Affiliation(s)
- Yuanling Chen
- Research Center for Life Sciences Computing, Zhejiang Lab, Hangzhou 311100, China
- Hainan Institute, Zhejiang University, Sanya 572025, China
| | - Gaoxiang Chen
- Research Center for Life Sciences Computing, Zhejiang Lab, Hangzhou 311100, China
| | - Jiaping Yu
- Hainan Institute, Zhejiang University, Sanya 572025, China
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yali Zhou
- Hainan Institute, Zhejiang University, Sanya 572025, China
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Shifang Fei
- Hainan Institute, Zhejiang University, Sanya 572025, China
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Haorong Chen
- Research Center for Life Sciences Computing, Zhejiang Lab, Hangzhou 311100, China
| | - Jianxiang Wu
- Hainan Institute, Zhejiang University, Sanya 572025, China
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Shuai Fu
- Research Center for Life Sciences Computing, Zhejiang Lab, Hangzhou 311100, China
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
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Hua M, Song L, Wang J, Wu J, Gu J, Huang S, Duan W, Yan F, Xu Z, Peng J. Identification and Genome Characterization of a Novel Nege-like Virus Isolated from Aphids ( Aphis gossypii) in Yunnan Province. Int J Mol Sci 2024; 25:5802. [PMID: 38891989 PMCID: PMC11172052 DOI: 10.3390/ijms25115802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/19/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
Negeviruses are insect-specific enveloped RNA viruses that exhibit a wide geographic distribution. A novel nege-like virus, tentatively named Aphis gossypii nege-like virus (AGNLV, GenBank: OR880429.1), was isolated from aphids (Aphis gossypii) in Lijiang City, Yunnan, China. AGNLV has a genome sequence of 9258 nt (excluding the polyA tail) encoding three open reading frames (ORFs). ORF1 (7149 nt) encodes a viral methyltransferase, a viral RNA helicase, and an RNA-dependent RNA polymerase. ORF2 (1422 nt) encodes a DiSB-ORF2_chro domain and ORF3 encodes an SP24 domain. The genome sequence of AGNLV shares the highest nucleotide identity of 60.0% and 59.5% with Wuhan house centipede virus 1 (WHCV1) and Astegopteryx formosana nege-like virus (AFNLV), respectively. Phylogenetic analysis based on the RNA-dependent RNA polymerase shows that AGNLV is clustered with other negeviruses and nege-like viruses discovered in aphids, forming a distinct "unclassified clade". Interestingly, AGNLV only encodes three ORFs, whereas AFNLV and WHCV1 have four ORFs. Structure and transmembrane domain predictions show the presence of eight alpha helices and five transmembrane helices in the AGNLV ORF3. Translational enhancement of the AGNLV 5' UTR was similar to that of the 5' UTR of plant viruses. Our findings provide evidence of the diversity and structure of nege-like viruses and are the first record of such a virus from a member of the genus Aphis.
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Affiliation(s)
- Mengying Hua
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.H.); (L.S.); (J.W.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Linhui Song
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.H.); (L.S.); (J.W.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jiaying Wang
- Ningbo Key Laboratory of Port Biological and Food Safety Testing, Ningbo Customs Technology Center (Ningbo Inspection and Quarantine Science Technology Academy), 8 Huikang, Ningbo 315100, China; (J.W.); (J.G.); (S.H.); (W.D.)
| | - Jian Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.H.); (L.S.); (J.W.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jianfeng Gu
- Ningbo Key Laboratory of Port Biological and Food Safety Testing, Ningbo Customs Technology Center (Ningbo Inspection and Quarantine Science Technology Academy), 8 Huikang, Ningbo 315100, China; (J.W.); (J.G.); (S.H.); (W.D.)
| | - Suwen Huang
- Ningbo Key Laboratory of Port Biological and Food Safety Testing, Ningbo Customs Technology Center (Ningbo Inspection and Quarantine Science Technology Academy), 8 Huikang, Ningbo 315100, China; (J.W.); (J.G.); (S.H.); (W.D.)
| | - Weijun Duan
- Ningbo Key Laboratory of Port Biological and Food Safety Testing, Ningbo Customs Technology Center (Ningbo Inspection and Quarantine Science Technology Academy), 8 Huikang, Ningbo 315100, China; (J.W.); (J.G.); (S.H.); (W.D.)
| | - Fei Yan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.H.); (L.S.); (J.W.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Zhongtian Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.H.); (L.S.); (J.W.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jiejun Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.H.); (L.S.); (J.W.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
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Jiao M, Yin Y, Tian Y, Lei J, Lin L, Wu J, Lu Y, Zheng H, Yan F, Wang J, Peng J. Adoption of the 2A Ribosomal Skip Principle to Track Assembled Virions of Pepper Mild Mottle Virus in Nicotiana benthamiana. PLANTS (BASEL, SWITZERLAND) 2024; 13:928. [PMID: 38611458 PMCID: PMC11013369 DOI: 10.3390/plants13070928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/11/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024]
Abstract
The coat protein (CP) is an important structural protein that plays many functional roles during the viral cycle. In this study, the CP of pepper mild mottle virus (PMMoV) was genetically fused to GFP using the foot-and-mouth disease virus peptide 2A linker peptide and the construct (PMMoV-GFP2A) was shown to be infectious. The systemic spread of the virus was monitored by its fluorescence in infected plants. Electron microscopy and immunocolloidal gold labelling confirmed that PMMoV-GFP2A forms rod-shaped particles on which GFP is displayed. Studies of tissue ultrastructure and virion self-assembly confirmed that PMMoV-GFP2A could be used to monitor the real-time dynamic changes of CP location during virus infection. Aggregations of GFP-tagged virions appeared as fluorescent plaques in confocal laser microscopy. Altogether, PMMoV-GFP2A is a useful tool for studying the spatial and temporal changes of PMMoV CP during viral infection.
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Affiliation(s)
- Mengting Jiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Biocontrol Engineering Research Center of Crop Disease & Pest of Yunnan Province, School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Yueyan Yin
- Institute of Biotechnology and Germplasm Resources, Yunnan Academy of Agricultural Sciences, Kunming 650223, China;
| | - Yanzhen Tian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jianing Lei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Lin Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jian Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Yuwen Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Hongying Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Fei Yan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jianguang Wang
- Biocontrol Engineering Research Center of Crop Disease & Pest of Yunnan Province, School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Jiejun Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (M.J.); (Y.T.); (J.L.); (L.L.); (J.W.); (Y.L.); (H.Z.); (F.Y.)
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
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5
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Wan Q, Zheng K, Wu J, Bu S, Jiao M, Zhou H, Lu Y, Zheng H, Wu G, Rao S, Chen H, Yan F, Peng J. The Additional 15 nt of 5' UTR in a Novel Recombinant Isolate of Chilli Veinal Mottle Virus in Solanum nigrum L. Is Crucial for Infection. Viruses 2023; 15:1428. [PMID: 37515116 PMCID: PMC10384581 DOI: 10.3390/v15071428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
An isolate of chilli veinal mottle virus (ChiVMV; genus Potyvirus) of Solanum nigrum L. from southwest China (ChiVMV-YunN/Yuxi) was identified and sequenced (GenBank: OP404087). Comparison with other ChiVMV isolates and recombination analyses suggested a recombinant origin. The most significant recombination event among all 21 complete ChiVMV isolates was an ending breakpoint at 1408-1488 for ChiVMV-YunN/Yuxi with ChiVMV-TaiW and ChiVMV-YunN/Ca operating as the respective major and minor parents. Interestingly, the 5' UTR of ChiVMV-YunN/Yuxi is 15 nucleotides ('AAAAATAAAACAACC') longer than other reported isolates. A full-length clone of ChiVMV-YunN/Yuxi was constructed and was shown to be infectious in Nicotiana benthamiana. The additional 15 nt of 5' UTR in ChiVMV-YunN/Yuxi was stable when transmitted through three generations. Experiments with modified clones showed that the additional 15 nt are essential for infection by this isolate.
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Affiliation(s)
- Qionglian Wan
- College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- School of Chemistry, Biology and Environment, Yuxi Normal University, Yuxi 653100, China
| | - Kaiyue Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jian Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Shan Bu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Mengting Jiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Huijie Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Yuwen Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Hongying Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Guanwei Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Shaofei Rao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Hairu Chen
- College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Fei Yan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jiejun Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
- Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
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6
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Assessment of the RNA Silencing Suppressor Activity of Protein P0 of Pepper Vein Yellows Virus 5: Uncovering Natural Variability, Relevant Motifs and Underlying Mechanism. BIOLOGY 2022; 11:biology11121801. [PMID: 36552310 PMCID: PMC9775047 DOI: 10.3390/biology11121801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
Pepper vein yellows virus 5 (PeVYV-5) belongs to a group of emerging poleroviruses (family Solemoviridae) which pose a risk to pepper cultivation worldwide. Since its first detection in Spain in 2013 and the determination of the complete genome sequence of an isolate in 2018, little is known on the presence, genomic variation and molecular properties of this pathogen. As other members of genus Polerovirus, PeVYV-5 encodes a P0 protein that was predicted to act as viral suppressor of RNA silencing (VSR), one of the major antiviral defense mechanisms in plants. The results of the present work have indicated that PeVYV-5 P0 is a potent VSR, which is able to induce the degradation of Argonaute (AGO) endonucleases, the main effectors of RNA silencing. New viral isolates have been identified in samples collected in 2020-2021 and sequencing of their P0 gene has revealed limited heterogeneity, suggesting that the protein is under negative selection. Analysis of natural and engineered P0 variants has pinpointed distinct protein motifs as critical for the VSR role. Moreover, a positive correlation between the VSR activity of the protein and its capability to promote AGO degradation could be established, supporting that such activity essentially relies on the clearance of core components of the RNA silencing machinery.
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Lin Q, Yan D, Hua M, Yin Y, Zheng H, Chen J, Yan F, Peng J, He Q, Lu Y. Complete genome sequence of iris potyvirus B infecting Lilium lancifolium in China. Arch Virol 2022; 167:2391-2393. [PMID: 35925395 DOI: 10.1007/s00705-022-05539-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/06/2022] [Indexed: 11/27/2022]
Abstract
The complete genome sequence of a virus from lily (Lilium lancifolium Thunb.) growing in Huoshan County, Anhui Province, China, was determined. The whole genome consists of 9558 nucleotides, excluding the poly(A) tail, and encodes a 3061-amino-acid polyprotein (GenBank number ON365558) typical of potyviruses. This is the first complete genome sequence of iris potyvirus B (IPB), for which only a partial sequence from Iris domestica was reported previously. Comparative analysis of this genome sequence with those of closely related potyviruses identified nine cleavage sites and the conserved motifs typical of potyviruses. The complete polyprotein ORF shares 73.6% nucleotide and 81.6% amino acid sequence identity with that of iris potyvirus A (IPA, GenBank number MH898493). Phylogenetic analysis showed that IPB is related to IPA and clusters in a group with lily yellow mosaic virus (LYMV). This is the first report of IPB infecting lily plants.
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Affiliation(s)
- Qi Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Dankan Yan
- Institute of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui, China
| | - Mengying Hua
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Yueyan Yin
- Institute of Alpine Economic Plants, Yunnan Academy of Agricultural Sciences, Lijiang, 674100, Yunnan, China
| | - Hongying Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Fei Yan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Jiejun Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Qiongji He
- Institute of Alpine Economic Plants, Yunnan Academy of Agricultural Sciences, Lijiang, 674100, Yunnan, China.
| | - Yuwen Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China.
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Xu T, Lei L, Fu Y, Yang X, Luo H, Chen X, Wu X, Wang Y, Jia MA. Molecular Characterization of a Novel Polerovirus Infecting Soybean in China. Viruses 2022; 14:v14071428. [PMID: 35891408 PMCID: PMC9322011 DOI: 10.3390/v14071428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 02/01/2023] Open
Abstract
Poleroviruses are positive-sense, single-stranded viruses. In this study, we describe the identification of a novel polerovirus isolated from soybean displaying curled leaves. The complete viral genome sequence was identified using high-throughput sequencing and confirmed using rapid amplification of cDNA ends (RACE), RT-PCR and Sanger sequencing. Its genome organization is typical of the members of genus Polerovirus, containing seven putative open reading frames (ORFs). The full genome is composed of single-stranded RNA of 5822 nucleotides in length, with the highest nucleotide sequence identity (79.07% with 63% coverage) for cowpea polerovirus 2 (CPPV2). Amino acid sequence identities of the protein products between the virus and its relatives are below the threshold determined by the International Committee of Taxonomy of Viruses (ICTV) for species demarcation, and this strongly supports this virus’ status as a novel species, for which the name soybean chlorotic leafroll virus (SbCLRV) is proposed. Recombination analysis identified a recombination event in the ORF5 of the 3’ portion in the genome. Phylogenetic analyses of the genome and encoded protein sequences revealed that the new virus is closely related to phasey bean mild yellows virus, CPPV2 and siratro latent polerovirus. Subsequently, we demonstrated the infectivity of SbCLRV in Nicotiana benthamiana via infectious cDNA clone generation and agroinoculation.
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Affiliation(s)
- Tengzhi Xu
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (T.X.); (Y.F.); (X.Y.); (H.L.); (X.C.); (X.W.)
| | - Lei Lei
- Guizhou Rapeseed Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550008, China;
| | - Yong Fu
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (T.X.); (Y.F.); (X.Y.); (H.L.); (X.C.); (X.W.)
| | - Xiaolan Yang
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (T.X.); (Y.F.); (X.Y.); (H.L.); (X.C.); (X.W.)
| | - Hao Luo
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (T.X.); (Y.F.); (X.Y.); (H.L.); (X.C.); (X.W.)
| | - Xiangru Chen
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (T.X.); (Y.F.); (X.Y.); (H.L.); (X.C.); (X.W.)
| | - Xiaomao Wu
- Institute of Crop Protection, College of Agriculture, Guizhou University, Guiyang 550025, China; (T.X.); (Y.F.); (X.Y.); (H.L.); (X.C.); (X.W.)
| | - Yaqin Wang
- State Key Laboratory of Rice Biology Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- Correspondence: (Y.W.); (M.-a.J.)
| | - Meng-ao Jia
- Guizhou Academy of Tobacco Sciences, Guiyang 550001, China
- Correspondence: (Y.W.); (M.-a.J.)
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9
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Hua M, Jiang S, Yuan E, Wan Q, Wang L, Lu Y, Zheng H, Chen H, Chen J, Yan F, Wang S, Peng J. Construction of an infectious full-length and eGFP-tagged cDNA clone of a chilli ringspot virus isolate from Yunnan province, China. Arch Virol 2022; 167:1583-1587. [PMID: 35567696 DOI: 10.1007/s00705-022-05457-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/21/2022] [Indexed: 11/02/2022]
Abstract
Chilli ringspot virus (ChiRSV; genus Potyvirus) was one of several viruses previously detected in pepper samples with severe yellowing and curling symptoms growing in Wenshan, Yunan province, China. We now report the full-length sequence of ChiRSV-YN/Wenshan (MZ269480), which has 88.5-98.9% nucleotide sequence identity to other published ChiRSV isolates. A full-length cDNA infectious clone was constructed. This cDNA and an eGFP-tagged clone were infectious, leading to systemic symptoms in both Nicotiana benthamiana and Capsicum spp. Recombinant clones containing the P1 protein coding region of other ChiRSV isolates differed in their pathogenicity. Single infection by ChiRSV caused mild mosaic or leaf crinkling in Capsicum frutescens L. and Capsicum annuum L.
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Affiliation(s)
- Mengying Hua
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Shanshan Jiang
- Shandong Provincial Key Laboratory of Plant Virology, Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, 250100, Shandong, China
| | - Enping Yuan
- Wenshan Academy of Agricultural Sciences, Wenshan, 663000, Yunnan, China
| | - Qionglian Wan
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Liyan Wang
- Shandong Provincial Key Laboratory of Plant Virology, Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, 250100, Shandong, China
| | - Yuwen Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Hongying Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Hairu Chen
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Fei Yan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Shaoxiang Wang
- Wenshan Academy of Agricultural Sciences, Wenshan, 663000, Yunnan, China.
| | - Jiejun Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, 315211, Zhejiang, China.
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10
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Peng J, Bu S, Yin Y, Hua M, Zhao K, Lu Y, Zheng H, Wan Q, Zhang S, Chen H, Liu Y, Chen J, Mo X, Yan F. Biological and Genetic Characterization of Pod Pepper Vein Yellows Virus-Associated RNA From Capsicum frutescens in Wenshan, China. Front Microbiol 2021; 12:662352. [PMID: 33936020 PMCID: PMC8083956 DOI: 10.3389/fmicb.2021.662352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/19/2021] [Indexed: 11/13/2022] Open
Abstract
Tombusvirus-like associated RNAs (tlaRNAs) are positive-sense single-stranded RNAs found in plants co-infected with some viruses of the genus Polerovirus. Pod pepper vein yellows virus (PoPeVYV) was recently reported as a new recombinant polerovirus causing interveinal yellowing, stunting, and leaf rolling in Capsicum frutescens plants at Wenshan city, Yunnan province, China. The complete genome sequence of its associated RNA has now been determined by next-generation sequencing and reverse transcription (RT) polymerase chain reaction (PCR). PoPeVYV-associated RNA (PoPeVYVaRNA) (GenBank Accession No. MW323470) has 2970 nucleotides and is closely related to other group II tlaRNAs, particularly tobacco bushy top disease-associated RNA (TBTDaRNA, GenBank Accession No. EF529625). In infection experiments on Nicotiana benthamiana and C. frutescens plants, synergism between PoPeVYVaRNA and PoPeVYV was demonstrated, leading to severe interveinal yellowing of leaves and stunting of plants. The results provide further information on the genetic and biological properties of the various agents associated with pepper vein yellows disease (PeVYD).
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Affiliation(s)
- Jiejun Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Shan Bu
- Key Laboratory of Pest Management of Horticultural Crop of Hunan Province, Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, China.,Longping Branch of Graduate College, Hunan University, Changsha, China
| | - Yueyan Yin
- College of Plant Protection, Yunnan Agricultural University, Kunming, China.,Institute of Alpine Economic Plants, Yunnan Academy of Agricultural Sciences, Lijiang, China
| | - Mengying Hua
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Kuangjie Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Yuwen Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Hongying Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Qionglian Wan
- College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Songbai Zhang
- Key Laboratory of Pest Management of Horticultural Crop of Hunan Province, Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Hairu Chen
- College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Yong Liu
- Key Laboratory of Pest Management of Horticultural Crop of Hunan Province, Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Xiaohan Mo
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Fei Yan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Institute of Plant Virology, Ningbo University, Ningbo, China
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