从韩国荞麦中分离出的一种假定新型α内病毒的全基因组序列
Complete genome sequence of a putative novel alphaendornavirus isolated from Fagopyrum esculentum in South Korea.
作者信息
Kim Se Eun, Igori Davaajargal, Kwon Suk-Yoon, Moon Jae Sun
机构信息
Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.
Department of Biology, School of Mathematics and Natural Sciences, Mongolian National University of Education, Ulaanbaatar, Mongolia.
出版信息
Arch Virol. 2022 May;167(5):1361-1364. doi: 10.1007/s00705-022-05408-8. Epub 2022 Mar 25.
The complete genome sequence of a putative new virus isolate, provisionally named "Fagopyrum esculentum endornavirus 2" (FeEV2), is 15,706 nucleotides long with a single, large open reading frame and a typical endornavirus genome organization. FeEV2 shares 19.4%-22.1% nucleotide sequence identity with other known endornavirus genome sequences. The putative polyprotein, RNA-dependent RNA polymerase (RdRp), helicase, and glycosyltransferase (GT) share 10.6%-24.3%, 30.4%-66.1%, 16.3%-45.7%, and 10.1%-21.6% amino acid sequence identity, respectively, with the homologous sequenced proteins from known endornaviruses. This suggests that it is a member of a new, distinct species. Phylogenetic analysis of RdRp sequences places FeEV2 with other Alphaendornavirus genus members (family Endornaviridae). This is the first report of the complete genome sequence of FeEV2, which was isolated from Fagopyrum esculentum in South Korea.
一种假定的新病毒分离株的全基因组序列，暂命名为“荞麦内病毒2”（FeEV2），长度为15706个核苷酸，具有一个单一的大开放阅读框和典型的内病毒基因组结构。FeEV2与其他已知内病毒基因组序列的核苷酸序列同一性为19.4%-22.1%。假定的多蛋白、RNA依赖性RNA聚合酶（RdRp）、解旋酶和糖基转移酶（GT）与已知内病毒的同源测序蛋白的氨基酸序列同一性分别为10.6%-24.3%、30.4%-66.1%、16.3%-45.7%和10.1%-21.6%。这表明它是一个新的、独特物种的成员。RdRp序列的系统发育分析将FeEV2与其他甲型内病毒属成员（内病毒科）归为一类。这是从韩国荞麦中分离出的FeEV2全基因组序列的首次报道。
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