Molecular characterization and pathogenicity of a novel monopartite geminivirus infecting tobacco in China
文献类型： 外文期刊
第一作者： Chen, Yuan
作者： Chen, Yuan;Hao, Kaiqiang;Wang, Zhiping;An, Mengnan;Xia, Zihao;Zhou, Xueping;Wu, Yuanhua;Guo, Shiping;Jiang, Lianqiang;Yan, Fangfang;Li, Fangfang;Zhou, Xueping;Zhou, Xueping
作者机构： Shenyang Agr Univ, Coll Plant Protect, Liaoning Key Lab Plant Pathol, Shenyang 110866, Liaoning, Peoples R China;Sichuan Tobacco Co, Chengdu 610000, Sichuan, Peoples R China;Sichuan Prov Tobacco Co, Liangshan Branch, Xichang 615000, Sichuan, Peoples R China;Sichuan Tobacco Co, Panzhihua Branch, Panzhihua 617026, Peoples R China;Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China;Zhejiang Univ, Inst Biotechnol, State Key Lab Rice Biol, Hangzhou 310058, Zhejiang, Peoples R China
关键词： Geminivirus; Begomovirus; Tomato leaf curl chuxiong virus; Infectious clone; Pathogenicity
期刊名称：VIROLOGY （ 2022影响因子：3.7； 五年影响因子：3.2 ）
ISSN： 0042-6822
年卷期： 2024 年 594 卷
收录情况： SCI
摘要： The occurrence of geminiviruses causes significant economic losses in many economically important crops. In this study, a novel geminivirus isolated from tobacco in Sichuan province of China, named tomato leaf curl Chuxiong virus (TLCCxV), was characterized by small RNA-based deep sequencing. The full-length of TLCCxV genome was determined to be 2744 nucleotides (nt) encoding six open reading frames. Phylogenetic and genome-wide pairwise identity analysis revealed that TLCCxV shared less than 91% identities with reported geminiviruses. A TLCCxV infectious clone was constructed and successfully infected Nicotiana benthamiana, N. tabacum, N. glutinosa, Solanum lycopersicum and Petunia hybrida plants. Furthermore, expression of the V2, C1 and C4 proteins through a potato virus X vector caused severe chlorosis or necrosis symptom in N. benthamiana. Taken together, we identified a new geminivirus in tobacco plants, and found that V2, C1 and C4 contribute to symptom development.
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