Complete genome sequence of equine herpesvirus type 9.
Abstract: Equine herpesvirus type 9 (EHV-9), which we isolated from a case of epizootic encephalitis in a herd of Thomson's gazelles (Gazella thomsoni) in 1993, has been known to cause fatal encephalitis in Thomson's gazelle, giraffe, and polar bear in natural infections. Our previous report indicated that EHV-9 was similar to the equine pathogen equine herpesvirus type 1 (EHV-1), which mainly causes abortion, respiratory infection, and equine herpesvirus myeloencephalopathy. We determined the genome sequence of EHV-9. The genome has a length of 148,371 bp and all 80 of the open reading frames (ORFs) found in the genome of EHV-1. The nucleotide sequences of the ORFs in EHV-9 were 86 to 95% identical to those in EHV-1. The whole genome sequence should help to reveal the neuropathogenicity of EHV-9.
Publication Date: 2012-11-21 PubMed ID: 23166237PubMed Central: PMC3503125DOI: 10.1128/JVI.02607-12Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The researchers successfully mapped the complete genome sequence of Equine herpesvirus type 9 (EHV-9), a pathogen found in multiple species like gazelles, giraffes, and polar bears. The sequencing data revealed that EHV-9 has high genetic similarity to EHV-1, which commonly causes abortions and respiratory infections in horses.
Unpacking the Abstract
- Equine herpesvirus type 9 (EHV-9) is the focus of this research, a virus first isolated from an outbreak (epizootic) of encephalitis in a herd of Thomson’s gazelles in 1993.
- EHV-9 is known to cause fatal encephalitis, an inflammation of the brain, in animals such as Thomson’s gazelles, giraffes, and polar bears. However, it’s not yet clear from this abstract whether the virus affects other animal species or humans.
- In previous research, EHV-9 was found to be similar to another virus known as equine herpesvirus type 1 (EHV-1). EHV-1 mainly affects horses, causing a range of symptoms including abortion, respiratory infections, and a neurological condition known as equine herpesvirus myeloencephalopathy.
Decoding the Genome Sequence
- In this study, the researchers have determined the complete genome sequence of EHV-9, involving the mapping of its genetic information.
- The length of the genome is 148,371 base pairs (bp), which is a measurement of the amount of genetic material in the virus. The virus’s genome has 80 open reading frames (ORFs), which means there are 80 distinct sections of the genome that could potentially be used to create proteins.
- The researchers found that the sequences of these ORFs in EHV-9 were 86 to 95% identical to those found in EHV-1, indicating a high degree of similarity between the two viruses.
Implications for Understanding EHV-9
- The sequencing of the whole EHV-9 genome is intended to help in understanding the virus’s neuropathogenicity, meaning its ability to cause disease in the nervous system. This is particularly relevant given the known tendency of the virus to cause in fatal encephalitis.
- Knowing the complete genome sequence can also contribute to studies on its epidemiology, pathogenesis, immune response, vaccine development, and other fields.
Cite This Article
APA
Fukushi H, Yamaguchi T, Yamada S.
(2012).
Complete genome sequence of equine herpesvirus type 9.
J Virol, 86(24), 13822.
https://doi.org/10.1128/JVI.02607-12 Publication
Researcher Affiliations
- Laboratory of Veterinary Microbiology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan. hfukushi@gifu-u.ac.jp
MeSH Terms
- Animals
- Genome, Viral
- Herpesviridae / genetics
- Horses / genetics
- Molecular Sequence Data
- Open Reading Frames
References
This article includes 13 references
- Reference deleted.
- Donovan TA, Schrenzel MD, Tucker T, Pessier AP, Bicknese B, Busch MD, Wise AG, Maes R, Kiupel M, McKnight C, Nordhausen RW. Meningoencephalitis in a polar bear caused by equine herpesvirus 9 (EHV-9).. Vet Pathol 2009 Nov;46(6):1138-43.
- Fukushi H, Tomita T, Taniguchi A, Ochiai Y, Kirisawa R, Matsumura T, Yanai T, Masegi T, Yamaguchi T, Hirai K. Gazelle herpesvirus 1: a new neurotropic herpesvirus immunologically related to equine herpesvirus 1.. Virology 1997 Jan 6;227(1):34-44.
- Fukushi H, Taniguchi A, Yasuda K, Yanai T, Masegi T, Yamaguchi T, Hirai K. A hamster model of equine herpesvirus 9 induced encephalitis.. J Neurovirol 2000 Aug;6(4):314-9.
- Gordon D, Abajian C, Green P. Consed: a graphical tool for sequence finishing.. Genome Res 1998 Mar;8(3):195-202.
- Kasem S, Yamada S, Kiupel M, Woodruff M, Ohya K, Fukushi H. Equine herpesvirus type 9 in giraffe with encephalitis.. Emerg Infect Dis 2008 Dec;14(12):1948-9.
- Lunn DP, Davis-Poynter N, Flaminio MJ, Horohov DW, Osterrieder K, Pusterla N, Townsend HG. Equine herpesvirus-1 consensus statement.. J Vet Intern Med 2009 May-Jun;23(3):450-61.
- Narita M, Uchimura A, Kawanabe M, Fukushi H, Hirai K. Invasion and spread of equine herpesvirus 9 in the olfactory pathway of pigs after intranasal inoculation.. J Comp Pathol 2001 May;124(4):265-72.
- Pagamjav O, Yamada S, Ibrahim el-SM, Crandell RA, Matsumura T, Yamaguchi T, Fukushi H. Molecular characterization of equine herpesvirus 1 (EHV-1) isolated from cattle indicating no specific mutations associated with the interspecies transmission.. Microbiol Immunol 2007;51(3):313-9.
- Schrenzel MD, Tucker TA, Donovan TA, Busch MD, Wise AG, Maes RK, Kiupel M. New hosts for equine herpesvirus 9.. Emerg Infect Dis 2008 Oct;14(10):1616-9.
- Taniguchi A, Fukushi H, Matsumura T, Yanai T, Masegi T, Hirai K. Pathogenicity of a new neurotropic equine herpesvirus 9 (gazelle herpesvirus 1) in horses.. J Vet Med Sci 2000 Feb;62(2):215-8.
- Taniguchi A, Fukushi H, Yanai T, Masegi T, Yamaguchi T, Hirai K. Equine herpesvirus 9 induced lethal encephalomyelitis in experimentally infected goats.. Arch Virol 2000;145(12):2619-27.
- Yanai T, Fujishima N, Fukushi H, Hirata A, Sakai H, Masegi T. Experimental infection of equine herpesvirus 9 in dogs.. Vet Pathol 2003 May;40(3):263-7.
Citations
This article has been cited 8 times.- Hu L, Wang T, Ren H, Liu W, Li Y, Wang C, Li L. Characterizing the Pathogenesis and Immune Response of Equine Herpesvirus 8 Infection in Lung of Mice.. Animals (Basel) 2022 Sep 20;12(19).
- Câmara RJF, Bueno BL, Resende CF, Balasuriya UBR, Sakamoto SM, Reis JKPD. Viral Diseases that Affect Donkeys and Mules.. Animals (Basel) 2020 Nov 25;10(12).
- Wimer CL, Schnabel CL, Perkins G, Babasyan S, Freer H, Stout AE, Rollins A, Osterrieder N, Goodman LB, Glaser A, Wagner B. The deletion of the ORF1 and ORF71 genes reduces virulence of the neuropathogenic EHV-1 strain Ab4 without compromising host immunity in horses.. PLoS One 2018;13(11):e0206679.
- Marenzoni ML, Stefanetti V, Danzetta ML, Timoney PJ. Gammaherpesvirus infections in equids: a review.. Vet Med (Auckl) 2015;6:91-101.
- Moeller RB Jr, Crossley B, Pipkin A, Li Y, Balasuriya UBR. Systemic equid alphaherpesvirus 9 in a Grant's zebra.. J Vet Diagn Invest 2018 Jul;30(4):580-583.
- Abdelgawad A, Damiani A, Ho SY, Strauss G, Szentiks CA, East ML, Osterrieder N, Greenwood AD. Zebra Alphaherpesviruses (EHV-1 and EHV-9): Genetic Diversity, Latency and Co-Infections.. Viruses 2016 Sep 20;8(9).
- Sijmons S, Vissani A, Tordoya MS, Muylkens B, Thiry E, Maes P, Matthijnssens J, Barrandeguy M, Van Ranst M. Complete genome sequence of equid herpesvirus 3.. Genome Announc 2014 Oct 2;2(5).
- Guo X, Izume S, Okada A, Ohya K, Kimura T, Fukushi H. Full genome sequences of zebra-borne equine herpesvirus type 1 isolated from zebra, onager and Thomson's gazelle.. J Vet Med Sci 2014 Sep;76(9):1309-12.
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