Complete Genome Sequence of a Novel Wild tomato mosaic virus Isolate Infecting Nicotiana tabacum in China
文献类型: 外文期刊
第一作者: Sun, Hangjun
作者: Sun, Hangjun;Liu, Wei;Yang, Jinguang;Wang, Fenglong;Shen, Lili;Li, Ying;Qian, Yumei;Sun, Hangjun;Sun, Dongmei
作者机构:
关键词: Nicotiana tabacum;Potyvirus;sequence analysis;Wild tomato mosaic virus
期刊名称:JOURNAL OF PHYTOPATHOLOGY ( 影响因子:1.789; 五年影响因子:1.574 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Virus particles of approximately 740-760 nm in length and 13 nm in diameter were observed from a diseased Nicotiana tabacum (tobacco) plant in Sichuan Province, China. The complete genomic sequence of the virus isolate XC1 was determined to contain 9659 nucleotides without 30 terminal poly(A) tail. XC1 has a genome typical of members of the genus Potyvirus, encoding a large polyprotein of 3075 amino acids. Putative proteolytic cleavage sites and a number of well characterized functional motifs were identified by sequence comparisons with those of known potyviruses. Sequence comparison revealed that XC1 shared the highest level of nucleotide sequence identity (76.5%) with Wild tomato mosaic virus (WTMV). Phylogenetic analysis showed that XC1 was closely related to the WTMV Guangdong isolate with an identity of 94.3% between CP gene sequence of the two viruses. We thus named XC1 WTMV-XC-1 as a novel isolate of WTMV. The full sequence of WTMV-XC-1 may serve as a basis for future investigations on the gene diversity of WTMV.
分类号: Q945
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