Molecular characterization of a novel potyvirus infecting noni
Molecular characterization of a novel potyvirus infecting noni
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感染诺丽的新型马铃薯病毒的分子特征
DOI：
10.1007/s00705-019-04400-z
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发表时间：
2019-12-01
影响因子：
2.7
通讯作者：
Li, Fan
中科院分区：
文献类型：
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作者：
Lan, Pingxiu;He, Peng;Li, Fan
测定了一种来自中国诺丽植物（巴戟天）的新马铃薯Y病毒的全基因组序列。基因组RNA由9645个核苷酸（不包括poly（A）尾）组成，含有马铃薯Y病毒属典型的开放阅读框架（ORF），编码一个3077个氨基酸（aa）的大的推定多聚蛋白。与马铃薯Y病毒属其他成员的基因组序列同源性为48.8%-58.5%，多蛋白序列同源性为38.5%-53.4%。系统进化分析表明，该病毒与马铃薯Y病毒属中的茉莉T病毒和李痘病毒关系最近。这些结果表明，该病毒应被认为是马铃薯Y病毒属的一个独特成员，并暂命名为“诺丽花叶病毒”（NoMV）。
The complete genomic sequence of a novel potyvirus from a noni plant in China (Morinda citrifolia) with foliar mosaic and chlorotic symptoms was determined. The genomic RNA consists of 9645 nucleotides (nt) excluding the poly(A) tail, containing the typical open reading frame (ORF) of potyviruses and encoding a large putative polyprotein of 3077 amino acids (aa). Pairwise comparisons showed that the virus shares 48.8%–58.5% sequence identity at the genome sequence level, and 38.5%–53.4% identity at the polyprotein sequence level with other members of the genusPotyvirus. Phylogenetic analysis indicated that the virus is most closely related to jasmine virus T and plum pox virus in the genusPotyvirus. These results suggest that this virus should be considered a distinct member of the genusPotyvirus, and it was tentatively named “noni mosaic virus” (NoMV).