Xinjiang Key Laboratory of Animal Infectious Diseases, Institute of Veterinary Medicine, Xinjiang Academy of Animal Sciences, Urumqi, 830013, China.
Virus Genes. 2023 Oct;59(5):786-789. doi: 10.1007/s11262-023-02025-8. Epub 2023 Aug 2.
Northern pintail (Anas acuta) is a migratory waterfowl that can transmit various viruses. The genome sequence of a Sobemovirus was determined using metagenomic sequencing from the feces of northern pintail (Anas acuta) in Xinjiang, northwest China. The virus possesses a linear RNA molecule of 4177 bp and is most closely related to isolates SoMV-WA (GenBank accession no. HM163159.1) and ATCC PV-109 (GenBank accession no. GQ845002.2), with a nucleotide identity of 86.7%. The virus encodes four open reading frames (ORF) coding for four proteins, and phylogenetic analysis of capsid protein and RNA-dependent RNA polymerase (RdRp) showed that the strain was clustered into the species Sowbane Mosaic Virus (SoMV). The amino acid sequence identity of capsid protein was 89.6-90.9% to other isolates of SoMV, but 17.6-31.4% similar to other strains in the genus Sobemovirus, indicating a strain of Sowbane Mosaic Virus. This is the first report of SoMV in the feces of wild birds and in China, and it suggested that northern pintail likely plays an alternative role in the transmission of SoMV.
北方针尾鸭（Anas acuta）是一种迁徙性水禽，可传播多种病毒。本研究通过对中国新疆北方针尾鸭粪便进行宏基因组测序，获得了一株 sobemovirus 的基因组序列。该病毒为具有 4177bp 线性 RNA 分子的病毒，与 Sobemovirus-WA（GenBank 登录号：HM163159.1）和 ATCC PV-109（GenBank 登录号：GQ845002.2）的亲缘关系最近，核苷酸同源性为 86.7%。该病毒编码 4 个开放阅读框（ORF），编码 4 种蛋白。衣壳蛋白和 RNA 依赖的 RNA 聚合酶（RdRp）的系统进化分析表明，该分离株属于 Sowbane Mosaic Virus（SoMV）。衣壳蛋白的氨基酸序列同源性与其他 SoMV 分离株为 89.6-90.9%，与 sobemovirus 属的其他株相似性为 17.6-31.4%，提示为一株 Sowbane Mosaic Virus。这是首次在中国野生鸟类粪便中检测到 SoMV，表明北方针尾鸭可能在 SoMV 的传播中发挥替代作用。
