期刊
ACTA VIROLOGICA
卷 65, 期 4, 页码 373-380出版社
AEPRESS SRO
DOI: 10.4149/av_2021_404
关键词
Zostera associated varicosavirus 1; Varicosavirus; Rhabdoviridae; common eelgrass; Zostera marina
类别
资金
- ChungAng University Graduate Research Scholarship Grants in 2021
- National Research Foundation of Korea - Government of Korea [2020R1A2C1013403]
- National Research Foundation of Korea [2020R1A2C1013403] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Varicosaviruses are bipartite RNA viruses that infect plants, with ZaVV1 being a novel member identified from common eelgrass. The genome of ZaVV1 consists of two segments, encoding different proteins with unknown functions.
Varicosaviruses (the genus Varicosavirus) are bipartite, negative-sense, single-stranded RNA viruses that infect plants. We analyzed a transcriptome dataset isolated from the common eelgrass (Zostera marina) and identified a novel varicosavirus named Zostera associated varicosavirus 1 (ZaVV1). The ZaVV1 genome consists of two genomic segments: RNA1 (6,632-nt) has an open reading frame (ORF) encoding a large multi-functional polymerase protein (L), while RNA2 (4,304-nt) has four ORFs: one for a nucleocapsid protein and three for proteins with unknown functions (P2, P3, and P4). Sequence comparison and phylogenetic analysis using L proteins showed that ZaVV1 is a novel member of the genus Varicosavirus of the family Rhabdoviridae. The conserved regulatory elements involved in transcription termination/polyadenylation and transcription initiation were identified in the ZaVV1 gene-junction regions with the consensus sequence 3'-UAUUAUUCUUUUUGCUCU-5' (in the negative-sense genome). The ZaVV1 genome sequence may be useful for studying the phylogenetic relationships of varicosaviruses and genome evolution of rhabdoviruses.
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