Complete genome sequence of a distinct isolate of cassava common mosaic virus (CsCMV) infecting cassava in Hainan, China
文献类型： 外文期刊
作者： Yu, Nai-tong 1 ; Yang, Yi 3 ; Li, Jun-hua 1 ; Li, Wei-li 1 ; Liu, Zhi-xin 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, Minist Agr & Rural Affairs, Haikou 571101, Hainan, Peoples R China
2.Hainan Key Lab Biosafety Monitoring & Mol Breedin, Haikou 571101, Hainan, Peoples R China
3.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China
关键词： Manihot esculentaCrantz; Potexvirus; Cassava common mosaic virus; Genome
期刊名称：EUROPEAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：1.907； 五年影响因子：2.022 ）
ISSN： 0929-1873
年卷期： 2020 年 158 卷 2 期
页码：
收录情况： SCI
摘要： The complete genomic sequence of cassava common mosaic virus isolate Linggao (CsCMV-LG) was determined from cassava (Manihot esculentaCrantz) with mild foliar mosaic symptom in Hainan Province, China. Excluding the poly(A) tail, the CsCMV-LG genome (GenBank accession No. MT038420) is 6374 nucleotides (nts) in length, with five major open reading frames encoding a 1450-amino acids (aa) RNA-dependent RNA polymerase (RdRp), three triple gene block (TGB) proteins (231-aa, 110-aa and 95-aa), and a 229-aa coat protein (CP). Phylogenetic analysis based on the complete sequence indicated that CsCMV-LG is closely related to CsCMV-Brazilian which belongs to the genusPotexvirus, but the sequence identity shared only 88.0%. Notablely, the CsCMV-LG can also infect tobacco (Nicotiana benthamiana) in laboratory through rub inoculation causing chlorosis and malformation symptoms 15 days post inoculation (dpi). The study extends genome sequence and genetic diversity of CsCMV and provides an important basis for the virus detection in cassava.
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