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Molecular characterization of common bean curly stunt virus: a novel recombinant geminivirus in China

文献类型： 外文期刊

作者： Zhang, Ruonan 1 ; Wu, Xiaoyun 1 ; Jiang, Xue 1 ; Wu, Xiaoxia 1 ; Luan, Xiaoyan 2 ; Cheng, Xiaofei 1 ;

作者机构： 1.Northeast Agr Univ, Coll Agr, Harbin 150030, Peoples R China

2.Heilongjiang Acad Agr Sci, Inst Soybean, 368 Xuefu Rd, Harbin 150086, Peoples R China

3.Northeast Agr Univ, Key Lab Germplasm Enhancement Physiol & Ecol Food, Chinese Educ Minist, Harbin 150030, Peoples R China

期刊名称：ARCHIVES OF VIROLOGY （ 影响因子：2.574； 五年影响因子：2.466 ）

ISSN： 0304-8608

年卷期： 2020 年 165 卷 1 期

页码：

收录情况： SCI

摘要： A new geminivirus was identified in common bean (Phaseolus vulgaris) showing severe stunt and leaf curling symptoms in Heilongjiang province of China, via sequencing and assembly of small RNAs. The genome of this geminivirus comprises 2,959 nucleotides (nt) and shares 21.77-54.97% nt sequence identity with other geminiviruses. The coat protein (CP) shares the highest amino acid (aa) sequence identity (23.5%) with that of sesame curly top virus (SeYMV; genus Turncurtovirus), whereas the C1 (Rep) shares the highest aa sequence identity (66.5%) with that of beet severe curly top virus (BSCTV; genus Curtovirus). This geminivirus neighbors the turncurtoviruses in phylogenetic trees based on the full genome sequence or the amino acid sequence of the Rep protein, but it forms a distinct clade in the phylogenetic tree based on the coat protein. Recombination analysis showed that parts of the C1 coding region of this geminivirus were recombined from a curtovirus or turncurtovirus. Based on these results, the name "common bean curly stunt virus" (CBCSV) is proposed for this virus.

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