文献类型： 外文期刊
作者： Han, Pei-Yu 1 ; Yin, Zhen-Ni 1 ; Yang, Jing-Jing 1 ; Zhang, Meng-Si 1 ; Huang, Ying 1 ; Zhang, Jian 1 ; Lu, Quan-You 1 ;
作者机构： 1.Jiangsu Univ Sci & Technol, Sch Biotechnol, Zhenjiang 212100, Jiangsu, Peoples R China
2.Chinese Acad Agr Sci, Sericultural Sci Res Ctr, Key Lab Silkworm & Mulberry Genet Improvement, Minist Agr & Rural Affairs, Zhenjiang 212100, Jiangsu, Peoples R China
关键词： Mulberry crinkle leaf virus; Mulcrilevirus; V6; Viral replication
期刊名称：VIROLOGY （ 影响因子：2.4； 五年影响因子：2.5 ）
ISSN： 0042-6822
年卷期： 2025 年 603 卷
页码：
收录情况： SCI
摘要： Mulberry crinkle leaf virus (MCLV) is a representative species of the genus Mulcrilevirus in the family Geminiviridae. Here, we identified an additional V6 ORF which embedded within the V4 ORF in the MCLV virionsense strand. The expression of V6 was confirmed by analyzing the promoter activity of V6 ORF upstream sequences and quantifying the viral DNA accumulation in V6-mutant MCLV-infected tomato plants. Infectious clones of V6-mutant MCLV vII (pCA-1.1MCLVmv6) and V4 and V6 double-mutant MCLV vII (pCA1.1MCLVmV4mV6) were constructed, and experiments transfecting protoplasts isolated from Nicotiana benthamiana and infecting tomato using the constructs were performed. The results indicate that V6 plays a critical role in the multiplication of MCLV in protoplasts, although it has minimal, if any, impact on the systemic infection of MCLV in plants. Additionally, V4 and V6 positively regulate the MCLV DNA replication in synergistic form.
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