Genome characterization of fig umbra-like virus
Genome characterization of fig umbra-like virus
复制标题
DOI：
10.1007/s11262-021-01867-4
复制
发表时间：
2021-09-15
期刊：
影响因子：
1.6
通讯作者：
Melzer, Michael
中科院分区：
文献类型：
--
作者：
Wang, Xupeng;Olmedo-Velarde, Alejandro;Melzer, Michael
通过高通量测序鉴定了来自食用无花果（Ficus carica）的新型本影样病毒的完整基因组。基于其与 GenBank 中提供的类本影病毒基因组序列的相似性，这种新病毒的提议名称为“无花果本影样病毒”（FULV）。全长 FULV-1 的基因组由 3049 个核苷酸组成，组织成三个开放阅读框 (ORF)。两两比较表明，该病毒的完整核苷酸序列与柑橘黄脉相关病毒（CYVaV）的同一性最高（71.3%）。此外，基于全基因组核苷酸序列和RNA依赖性RNA聚合酶氨基酸序列的系统发育树表明，FULV与CYVaV和其他本影样病毒形成单系谱系。基于本影病毒属的划分标准，以及缺乏两个本影病毒 ORF，我们提出 FULV 是 Tombusviridae 科内本影样病毒进化枝的推定新成员。
The complete genome of a new umbra-like virus from edible fig (Ficus carica) was identified by high-throughput sequencing. Based on its similarity to umbra-like virus genome sequences available in GenBank, the proposed name of this new virus is "fig umbra-like virus" (FULV). The genome of full-length FULV-1 consists of 3049 nucleotides organized into three open reading frames (ORFs). Pairwise comparisons showed that the complete nucleotide sequence of the virus had the highest identity (71.3%) to citrus yellow vein-associated virus (CYVaV). In addition, phylogenetic trees based on whole-genome nucleotide sequences and amino acid sequences of the RNA-dependent RNA polymerase showed that FULV forms a monophyletic lineage with CYVaV and other umbra-like viruses. Based on the demarcation criteria of the genus Umbravirus, and lack of two umbravirus ORFs, we propose that FULV is a putative new member of the umbra-like virus clade within the family Tombusviridae.