数字农科院2.0

Molecular characterization and pathogenicity of a novel monopartite geminivirus infecting tobacco in China

文献类型： 外文期刊

作者： Yuan Chen;Shiping Guo;Lianqiang Jiang;Fangfang Yan;Kaiqiang Hao;Zhiping Wang;Mengnan An;Zihao Xia;Fangfang Li;Xueping Zhou;Yuanhua Wu

作者机构：

关键词： Begomovirus;Geminivirus;Infectious clone;Pathogenicity;Tomato leaf curl chuxiong virus

期刊名称： Virology

ISSN： 0042-6822

年卷期： 2024 年 594 卷

页码：

收录情况： SCIE（2024版）

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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