Abstract
In this study, we present an analysis of metagenome sequences obtained from a filtrate of a siphon tissue homogenate of otter clams (Lutraria rhynchaena) with swollen-siphon disease. The viral signal was mined from the metagenomic data, and a novel circular ssDNA virus was identified. Genomic features and phylogenetic analysis showed that the virus belongs to the phylum Cressdnaviricota, which consists of viruses with circular, single-stranded DNA (ssDNA) genomes. Members of this phylum have been identified in various species and in environmental samples. The newly found virus is distantly related to the currently known members of the phylum Cressdnaviricota.
Availability of data and material
The raw reads from the metagenome sequencing were deposited in the NCBI Sequence Read Archive under accession number SRR10717928. The complete genome sequence of the circular ssDNA virus determined in this study was submitted to the GenBank database with the accession no. MN818866.
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Acknowledgements
This research was supported by Bilateral Joint Research Projects “Bioinformatics Analyses for the Genome Sequence of Lutraria philippinarum Infecting Virus” (FY2017-2019) from the Japan Society for the Promotion of Science, and “Metagenomic analyses for discovery of virus that caused swollen siphon disease on otter clam (Lutraria phylippinarum) in Vietnam” (VAST.HTQT.NHATBAN.02/17-19) from the Vietnam Academy of Science and Technology. This research was also partly supported by the project “Study of technical solution and management for efficiently controlling the swollen siphon disease in otter clam (Lutraria phylippinarum)” from the Ministry of Agriculture and Rural Development of Vietnam.
Funding
This research was supported by Bilateral Joint Research Projects “Bioinformatics Analyses for the Genome Sequence of Lutraria philippinarum Infecting Virus” (FY2017-2019) from the Japan Society for the Promotion of Science, and “Metagenomic analyses for discovery of virus that caused swollen siphon disease on otter clam (Lutraria phylippinarum) from the Vietnam” (VAST.HTQT.NHATBAN.02/17-19) by Vietnam Academy of Science and Technology. This research was partly supported by the project “Study of technical solution and management for efficiently controlling the swollen siphon disease in otter clam (Lutraria phylippinarum)” from the Ministry of Agriculture and Rural Development of Vietnam.
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Kim, O.T.P., Kagaya, Y., Tran, H.S. et al. A novel circular ssDNA virus of the phylum Cressdnaviricota discovered in metagenomic data from otter clams (Lutraria rhynchaena). Arch Virol 165, 2921–2926 (2020). https://doi.org/10.1007/s00705-020-04819-9
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DOI: https://doi.org/10.1007/s00705-020-04819-9