Abstract
Shuni virus (SHUV), a member of the genus Orthobunyavirus, has in a recent study been associated with neurological disease in horses in South Africa. After its first isolation in 1966 from an asymptomatic bovine, very little attention was given to the genetic characterisation of SHUV. The association of SHUV with severe neurological disease in several horses in South Africa prompted us to determine the full genome sequence of a horse neurovirulent isolate to compare it to other members of the genus Orthobunyavirus, as well as the partially sequenced genome of the prototype SHUV strain. The availability of a full genome sequence will facilitate the development of a reverse genetics system to study SHUV molecular biology and pathogenesis.
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References
Moore DL et al (1975) Arthropod-borne viral infections in man in Nigeria: 1964-1970. Ann Trop Med Parasitol 69:49–64
Causey OR et al (1972) Isolations of Simbu-group viruses in Ibadan, Nigeria 1964-69, including the new types Sango, Shamonda, Sabo and Shuni. Ann Trop Med Parasitol 66(3):357–362
Goller KV et al (2012) Schmallenberg virus as possible ancestor of Shamonda virus. Emerg Infect Dis 18(10):1644–1646
van Eeden C et al (2012) Shuni virus as cause of neurologic disease in horses. Emerg Infect Dis 18(2):318–321
Elliott RM (1990) Molecular biology of the Bunyaviridae. J Gen Virol 71(Pt 3):501–522
Fazakerley JK et al (1988) Organization of the middle RNA segment of snowshoe hare Bunyavirus. Virology 167(2):422–432
Fuller F, Bhown AS, Bishop DH (1983) Bunyavirus nucleoprotein, N, and a non-structural protein, NSS, are coded by overlapping reading frames in the S RNA. J Gen Virol 64(Pt 8):1705–1714
Saeed MF et al (2001) Phylogeny of the Simbu serogroup of the genus Bunyavirus. J Gen Virol 82:2173–2181
Yanase T et al (2003) Sequence analysis of the medium RNA segment of three Simbu serogroup viruses, Akabane, Aino, and Peaton viruses. Virus Res 93(1):63–69
Ogawa Y et al (2007) Sequence determination and functional analysis of the Akabane virus (family Bunyaviridae) L RNA segment. Arch Virol 152(5):971–979
Briese T et al (2006) Batai and Ngari viruses: M segment reassortment and association with severe febrile disease outbreaks in East Africa. J Virol 80(11):5627–5630
Yanase T et al (2006) Genetic characterization of Batai virus indicates a genomic reassortment between orthobunyaviruses in nature. Arch Virol 151(11):2253–2260
Kobayashi T et al (2007) Genetic diversity and reassortments among Akabane virus field isolates. Virus Res 130(1–2):162–171
Saeed MF et al (2001) Jatobal virus is a reassortant containing the small RNA of Oropouche virus. Virus Res 77(1):25–30
Yanase T et al (2010) Genetic characterization of Aino and Peaton virus field isolates reveals a genetic reassortment between these viruses in nature. Virus Res 153(1):1–7
Langmead B, Salzberg SL (2012) Fast gapped-read alignment with Bowtie 2. Nat Methods 9(4):357–359
Jones DT, Taylor WR, Thornton JM (1992) The rapid generation of mutation data matrices from protein sequences. Comput Appl Biosci 8(3):275–282
Tamura K et al (2011) MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol Biol Evol 28:2731–2739
Thompson JD, Higgins DG, Gibson TJ (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res 22(22):4673–4680
Nei M, Gojobori T (1986) Simple methods for estimating the numbers of synonymous and nonsynonymous nucleotide substitutions. Mol Biol Evol 3(5):418–426
Eifan SA, Elliott RM (2009) Mutational analysis of the Bunyamwera orthobunyavirus nucleocapsid protein gene. J Virol 83(21):11307–11317
Bridgen A et al (2001) Bunyamwera bunyavirus nonstructural protein NSs is a nonessential gene product that contributes to viral pathogenesis. Proc Natl Acad Sci USA 98(2):664–669
Muller R et al (1995) Characterization of clone 13, a naturally attenuated avirulent isolate of Rift Valley fever virus, which is altered in the small segment. Am J Trop Med Hyg 53(4):405–411
Varela M et al (2013) Schmallenberg virus pathogenesis, tropism and interaction with the innate immune system of the host. PLoS Pathog 9(1):e1003133
Briese T, Kapoor V, Lipkin WI (2007) Natural M-segment reassortment in Potosi and Main Drain viruses: implications for the evolution of orthobunyaviruses. Arch Virol 152(12):2237–2247
Briese T, Rambaut A, Lipkin WI (2004) Analysis of the medium (M) segment sequence of Guaroa virus and its comparison to other orthobunyaviruses. J Gen Virol 85(Pt 10):3071–3077
Pollitt E et al (2006) Characterization of Maguari orthobunyavirus mutants suggests the nonstructural protein NSm is not essential for growth in tissue culture. Virology 348(1):224–232
Savji N et al (2011) Genomic and phylogenetic characterization of Leanyer virus, a novel orthobunyavirus isolated in northern Australia. J Gen Virol 92(Pt 7):1676–1687
Pekosz A et al (1995) Protection from La Crosse virus encephalitis with recombinant glycoproteins: role of neutralizing anti-G1 antibodies. J Virol 69(6):3475–3481
Reguera J, Weber F, Cusack S (2010) Bunyaviridae RNA polymerases (L-protein) have an N-terminal, influenza-like endonuclease domain, essential for viral cap-dependent transcription. PLoS Pathog 6(9):e1001101
Elliott RM, Schmaljohn CS, Collett MS (1991) Bunyaviridae genome structure and gene expression. Curr Top Microbiol Immunol 169:91–141
Fauquet CM, Fargette D (2005) International Committee on Taxonomy of Viruses and the 3,142 unassigned species. Virol J 2:64
Barr JN et al (2003) Segment-specific terminal sequences of Bunyamwera bunyavirus regulate genome replication. Virology 311(2):326–338
Barr JN, Wertz GW (2004) Bunyamwera bunyavirus RNA synthesis requires cooperation of 3’- and 5’-terminal sequences. J Virol 78(3):1129–1138
Kohl A et al (2006) Genetic elements regulating packaging of the Bunyamwera orthobunyavirus genome. J Gen Virol 87(Pt 1):177–187
Akashi H et al (1997) Sequence determination and phylogenetic analysis of the Akabane bunyavirus S RNA genome segment. J Gen Virol 78(Pt 11):2847–2851
Matsumori Y et al (2002) Serological and genetic characterization of newly isolated Peaton virus in Japan. Brief report. Arch Virol 147(2):401–410
Lee E et al (2000) Mutagenesis of the signal sequence of yellow fever virus prM protein: enhancement of signalase cleavage In vitro is lethal for virus production. J Virol 74(1):24–32
Botha EM et al (2008) Genetic determinants of virulence in pathogenic lineage 2 west nile virus strains. Emerg Infect Dis 14(2):222–230
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This study was funded by the Global Disease Detection (GDD) programme of the Centres for Disease Control and Prevention (CDC), Atlanta, USA.
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Accession numbers: The GenBank accession numbers for SAE 18/09 are KC510272 for the S segment, KF153117 for the M segment and KF153118 for the L segment.
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van Eeden, C., Harders, F., Kortekaas, J. et al. Genomic and phylogenetic characterization of Shuni virus. Arch Virol 159, 2883–2892 (2014). https://doi.org/10.1007/s00705-014-2131-2
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DOI: https://doi.org/10.1007/s00705-014-2131-2