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Waltzek TB, Subramaniam K, Leis E, Katona R, Fan Ng TF, Delwart E, Barbknecht M, Rock K, Hoffman MA. Characterization of a peribunyavirus isolated from largemouth bass (Micropterus salmoides). Virus Res 2019; 273:197761. [PMID: 31539558 DOI: 10.1016/j.virusres.2019.197761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 01/15/2023]
Abstract
We report the complete genome sequencing of the first fish peribunyavirus determined using a next-generation sequencing approach. The virus was isolated during a routine health assessment of wild largemouth bass (Micropterus salmoides) in Wisconsin in April of 2009. Further research is needed to determine the epidemiology and pathogenicity of the largemouth bass bunyavirus.
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Affiliation(s)
- Thomas B Waltzek
- University of Florida, 2187 Mowry Road, 32611 Gainesville, FL, USA.
| | | | - Eric Leis
- La Crosse Fish Health Center - Midwest Fisheries Center, U.S. Fish and Wildlife Service, 555 Lester Ave, 54650, Onalaska, WI, USA
| | - Ryan Katona
- La Crosse Fish Health Center - Midwest Fisheries Center, U.S. Fish and Wildlife Service, 555 Lester Ave, 54650, Onalaska, WI, USA
| | - Terry Fei Fan Ng
- College of Veterinary Medicine, University of Georgia, Athens, GA, USA; Blood Systems Research Institute, Department of Laboratory Medicine, University of California, San Francisco, CA, USA; Department of Laboratory Medicine, University of California, San Francisco, CA, USA
| | - Eric Delwart
- Blood Systems Research Institute, Department of Laboratory Medicine, University of California, San Francisco, CA, USA; Department of Laboratory Medicine, University of California, San Francisco, CA, USA
| | | | - Kelly Rock
- University of Wisconsin-La Crosse, 54601, La Crosse, WI, USA
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Mor SK, Phelps NBD, Barbknecht M, Hoffman MA, Goyal SM. A multiplex RT-PCR assay for the detection of fish picornaviruses. J Virol Methods 2015; 221:131-4. [PMID: 25962537 DOI: 10.1016/j.jviromet.2015.04.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 04/21/2015] [Accepted: 04/23/2015] [Indexed: 12/23/2022]
Abstract
With the emergence of high profile fish diseases in the Great Lakes region, surveillance and regulatory inspections of fish populations have increased. This has resulted in a better understanding of known pathogens and isolation of many new pathogens of fish. In this study, a multiplex RT-PCR assay was developed for the detection of three newly discovered fish picornaviruses: bluegill picornavirus-1 (BGPV-1), fathead minnow picornavirus (FHMPV), and eel picornavirus-1 (EPV-1). This assay was found to be very sensitive with a detection limit of 81.9pg/μl of extracted RNA from a pool of FHMPV and BGPV-1 and was able to detect 501 and 224 gene copies/μl of BGPV-1 and FHMPV, respectively. The assay was highly reproducible and did not cross react with other closely related pathogens. We believe that this new assay provides a rapid and cost effective tool for confirming cell culture isolates and conducting prevalence studies of these newly detected fish picornaviruses.
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Affiliation(s)
- Sunil K Mor
- Minnesota Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, 1333 Gortner Avenue Street, Paul, MN 55108, USA.
| | - Nicholas B D Phelps
- Minnesota Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, 1333 Gortner Avenue Street, Paul, MN 55108, USA
| | - Marisa Barbknecht
- Department of Microbiology, University of Wisconsin-La Crosse, 1725 State Street, La Crosse, WI 54601, USA
| | - Michael A Hoffman
- Department of Microbiology, University of Wisconsin-La Crosse, 1725 State Street, La Crosse, WI 54601, USA
| | - Sagar M Goyal
- Minnesota Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, 1333 Gortner Avenue Street, Paul, MN 55108, USA
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Barbknecht M, Sepsenwol S, Leis E, Tuttle-Lau M, Gaikowski M, Knowles NJ, Lasee B, Hoffman MA. Characterization of a new picornavirus isolated from the freshwater fish Lepomis macrochirus. J Gen Virol 2013; 95:601-613. [PMID: 24337169 DOI: 10.1099/vir.0.061960-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The freshwater fish Lepomis macrochirus (bluegill) is common to North American waters, and important both ecologically and as a sport fish. In 2001 an unknown virus was isolated from bluegills following a bluegill fish kill. This virus was identified as a picornavirus [termed bluegill picornavirus (BGPV)] and a diagnostic reverse transcriptase PCR was developed. A survey of bluegills in Wisconsin waters showed the presence of BGPV in 5 of 17 waters sampled, suggesting the virus is widespread in bluegill populations. Experimental infections of bluegills confirmed that BGPV can cause morbidity and mortality in bluegills. Molecular characterization of BGPV revealed several distinct genome characteristics, the most unusual of which is the presence of a short poly(C) tract in the 3' UTR. Additionally, the genome encodes a polyprotein lacking a leader peptide and a VP0 maturation cleavage site, and is predicted to encode two distinct 2A proteins. Sequence comparison showed that the virus is most closely related to a phylogenetic cluster of picornaviruses that includes the genera Aquamavirus, Avihepatovirus and Parechovirus. However, it is distinct enough, for example sharing only about 38% sequence identity to the parechoviruses in the 3D region, that it may represent a new genus in the family Picornaviridae.
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Affiliation(s)
- Marisa Barbknecht
- Department of Microbiology, University of Wisconsin-La Crosse, 1725 State Street, La Crosse, WI, 54601, USA
| | - Sol Sepsenwol
- Department of Biology, University of Wisconsin-Stevens Point, 2100 Main Street, Stevens Point, WI, 54481, USA
| | - Eric Leis
- US Fish and Wildlife Service, La Crosse Fish Health Center, 555 Lester Avenue, Onalaska, WI, 54650, USA
| | - Maren Tuttle-Lau
- US Geological Survey-Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI, 54603, USA.,US Fish and Wildlife Service, La Crosse Fish Health Center, 555 Lester Avenue, Onalaska, WI, 54650, USA
| | - Mark Gaikowski
- US Geological Survey-Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI, 54603, USA
| | - Nick J Knowles
- Pirbright Institute, Ash Road, Pirbright, Woking, Surrey, GU24 0NF, UK
| | - Becky Lasee
- US Fish and Wildlife Service, La Crosse Fish Health Center, 555 Lester Avenue, Onalaska, WI, 54650, USA
| | - Michael A Hoffman
- Department of Microbiology, University of Wisconsin-La Crosse, 1725 State Street, La Crosse, WI, 54601, USA
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