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Complete genome sequence of a recombinant isolate of yambean mosaic virus from Canavalia ensiformis
Virus Genes ( IF 1.9 ) Pub Date : 2021-08-20 , DOI: 10.1007/s11262-021-01864-7
Renan de Souza Cascardo 1 , Lorenna L Pires 2 , Lorhan L Leal 1 , F Murilo Zerbini 3 , Poliane Alfenas-Zerbini 1 , José Evando A Beserra 2
Affiliation  

The complete genome sequence of a Brazilian isolate of yambean mosaic virus (YBMV) is presented. High-throughput sequencing (Illumina HiSeq) and Sanger sequencing revealed the complete genome sequence of the YBMV-BRA-6 isolate, found in Canavalia ensiformis. The de novo contigs were assembled into a 9612 nucleotides (nt) long scaffold, excluding the 3’-terminal poly(A) tail, covering the complete genome. The genomic RNA contains an open reading frame (ORF) typical of members of the genus Potyvirus, family Potyviridae, encoding a large putative polyprotein of 3078 amino acids (aa) and a small overlapping PIPO ORF. Pairwise comparisons showed that the YBMV-BRA-6 isolate sequence shares 88.1% nt identity for the complete genome and 90.6% aa identity for the polyprotein with the YBMV-SR isolate. Phylogenetic analysis grouped both isolates together and close to bean common mosaic virus (BCMV). The polyprotein cleavage sites were predicted and a recombination event is described.



中文翻译:

一株番薯花叶病毒重组分离株的全基因组序列

介绍了巴西豆花叶病毒 (YBMV) 分离株的完整基因组序列。高通量测序 (Illumina HiSeq) 和 Sanger 测序揭示了在Canavalia ensiformis中发现的 YBMV-BRA-6 分离株的完整基因组序列。de novo contigs 组装成一个 9612 个核苷酸 (nt) 长的支架,不包括 3'-末端 poly(A) 尾,覆盖整个基因组。基因组 RNA 包含一个开放阅读框 (ORF),该开放阅读框 (ORF) 是马铃薯病毒属、马铃薯病毒成员的典型特征。,编码 3078 个氨基酸 (aa) 的大型假定多蛋白和一个小的重叠 PIPO ORF。成对比较表明,YBMV-BRA-6 分离物序列与 YBMV-SR 分离物的完整基因组具有 88.1% 的 nt 同一性,而多蛋白的 aa 同一性为 90.6%。系统发育分析将这两种分离株归为一类,并与豆类常见花叶病毒 (BCMV) 接近。预测了多蛋白切割位点并描述了重组事件。

更新日期:2021-08-20
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