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Gál B, Varga-Kugler R, Ihász K, Kaszab E, Farkas S, Marton S, Martella V, Bányai K. A Snapshot on the Genomic Epidemiology of Turkey Reovirus Infections, Hungary. Animals (Basel) 2023; 13:3504. [PMID: 38003122 PMCID: PMC10668827 DOI: 10.3390/ani13223504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/29/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Reovirus infections in turkeys are associated with arthritis and lameness. Viral genome sequence data are scarce, which makes an accurate description of the viral evolution and epidemiology difficult. In this study, we isolated and characterized turkey reoviruses from Hungary. The isolates were identified in 2016; these isolates were compared with earlier Hungarian turkey reovirus strains and turkey reoviruses isolated in the 2010s in the United States. Gene-wise sequence and phylogenetic analyses identified the cell-receptor binding protein and the main neutralization antigen, σC, to be the most conserved. The most genetically diverse gene was another surface antigen coding gene, μB. This gene was shown to undergo frequent reassortment among chicken and turkey origin reoviruses. Additional reassortment events were found primarily within members of the homologous turkey reovirus clade. Our data showed evidence for low variability among strains isolated from independent outbreaks, a finding that suggests a common source of turkey reoviruses in Hungarian turkey flocks. Given that commercial vaccines are not available, identification of the source of these founder virus strains would permit a more efficient prevention of disease outbreaks before young birds are settled to fattening facilities.
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Affiliation(s)
- Bence Gál
- Intervet Hungária Kft, Lechner Odon Fasor 10/b, H-1095 Budapest, Hungary;
| | - Renáta Varga-Kugler
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (R.V.-K.); (K.I.); (E.K.); (S.M.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
| | - Katalin Ihász
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (R.V.-K.); (K.I.); (E.K.); (S.M.)
| | - Eszter Kaszab
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (R.V.-K.); (K.I.); (E.K.); (S.M.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
- Institute of Metagenomics, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Szilvia Farkas
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary;
| | - Szilvia Marton
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (R.V.-K.); (K.I.); (E.K.); (S.M.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari, Aldo Moro, S.P. per Casamassima km 3, 70010 Valenzano, Italy;
| | - Krisztián Bányai
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (R.V.-K.); (K.I.); (E.K.); (S.M.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary
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Peng Z, Zhang H, Zhang X, Wang H, Liu Z, Qiao H, Lv Y, Bian C. Identification and molecular characterization of novel duck reoviruses in Henan Province, China. Front Vet Sci 2023; 10:1137967. [PMID: 37065255 PMCID: PMC10098080 DOI: 10.3389/fvets.2023.1137967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
Novel Duck reovirus (NDRV) is an ongoing non-enveloped virus with ten double-stranded RNA genome segments that belong to the genus Orthoreovirus, in the family Reoviridae. NDRV-associated spleen swelling, and necrosis disease have caused considerable economic losses to the waterfowl industry worldwide. Since 2017, a significant number of NDRV outbreaks have emerged in China. Herein, we described two cases of duck spleen necrosis disease among ducklings on duck farms in Henan province, central China. Other potential causative agent, including Muscovy duck reovirus (MDRV), Duck hepatitis A virus type 1 (DHAV-1), Duck hepatitis A virus type 3 (DHAV-3), Newcastle disease virus (NDV), and Duck tembusu virus (DTMUV), were excluded by reverse transcription-polymerase chain reaction (RT-PCR), and two NDRV strains, HeNXX-1/2021 and HNJZ-2/2021, were isolated. Sequencing and phylogenetic analysis of the σC genes revealed that both newly identified NDRV isolates were closely related to DRV/SDHZ17/Shandong/2017. The results further showed that Chinese NDRVs had formed two distinct clades, with late 2017 as the turning point, suggesting that Chinese NDRVs have been evolving in different directions. This study identified and genetic characteristics of two NDRV strains in Henan province, China, indicating NDRVs have evolved in different directions in China. This study provides an insight into the ongoing emerged duck spleen necrosis disease and enriches our understanding of the genetic diversity and evolution of NDRVs.
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Affiliation(s)
- Zhifeng Peng
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Han Zhang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Xiaozhan Zhang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Haiyan Wang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Zihan Liu
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Hongxing Qiao
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Yujin Lv
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Chuanzhou Bian
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
- *Correspondence: Chuanzhou Bian
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Recombinant characteristics, pathogenicity, and transmissibility of a variant goose orthoreovirus derived from inter-lineage recombination. Vet Microbiol 2023; 277:109620. [PMID: 36543090 DOI: 10.1016/j.vetmic.2022.109620] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/30/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022]
Abstract
Since March 2021, an infectious characterized by white necrotic foci throughout the goose body has appeared in the major goose-producing regions in China. This disease has caused economic hardship for goose farms in many regions of China with approximately 50 % mortality. A novel goose-origin orthoreovirus was isolated from the spleen of diseased geese and designated as N-GRV/HN/Goose/2021/China (N-GRV-HN21) strain. Next-generation sequencing and phylogenetic analysis revealed that the isolate was a reassortant virus containing viral gene segments from three ARV serotypes that infect duck, muscovy duck, and goose. Geese infection test showed that both N-GRV-HN21-infected and contacted geese displayed whole-body white necrotic foci. N-GRV RNA was detected in different organs of both infected and contacted geese, indicating that the N-GRV isolate is pathogenic and transmissible in geese. Seroconversion was also observed in experimentally infected and contacted geese. A prevalence study of 323 goose serum samples collected from different goose breeding areas showed that 86 % of the geese were positive for N-GRV. In conclusion, all results warrant the necessity to monitor orthoreovirus epidemiology and reassortment as the orthoreovirus could be an important pathogen for the waterfowl industry and a novel orthoreovirus might emerge to threaten animal and public health.
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Lunge VR, De Carli S, Fonseca ASK, Ikuta N. Avian Reoviruses in Poultry Farms from Brazil. Avian Dis 2022; 66:459-464. [PMID: 36715480 DOI: 10.1637/aviandiseases-d-22-99998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/13/2022] [Indexed: 01/11/2023]
Abstract
Avian reovirus (ARV) is highly disseminated in commercial Brazilian poultry farms, causing arthritis/tenosynovitis, runting-stunting syndrome, and malabsorption syndrome in different meat- and egg-type birds (breeders, broilers, grillers, and layers). In Brazil, ARV infection was first described in broilers in the 1970s but was not considered an important poultry health problem for decades. A more concerning outcome of field infections has been observed in recent years, including condemnations at slaughterhouses because of the unsightly appearance of chicken body parts, mainly the legs. Analyses of the performance of poultry flocks have further evidenced economic losses to farms. Genetic and antigenic characterization of ARV field strains from Brazil demonstrated a high diversity of lineages circulating in the entire country, including four of the five main phylogenetic groups previously described (I, II, III, and V). It is still unclear if all of them are associated with different diseases affecting flocks' performance in Brazilian poultry. ARV infections have been controlled in Brazilian poultry farms by immunization of breeders and young chicks with classical commercial live vaccine strains (S1133, 1733, 2408, and 2177) used elsewhere in the Western Hemisphere. However, genetic and antigenic variations of the field isolates have prevented adequate protection against associated diseases, so killed autogenous vaccines are being produced from isolates obtained on specific farms. In conclusion, ARV field variants are continuously challenging poultry farming in Brazil. Epidemiological surveillance combined with molecular biological analyses from the field samples, as well as the development of vaccine strains directed toward the ARV circulating variants, are necessary to control this economically important poultry pathogen.
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Affiliation(s)
- Vagner R Lunge
- Laboratório de Diagnóstico em Medicina Veterinária, Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil, .,Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil.,Simbios Biotecnologia, Cachoeirinha, Rio Grande do Sul, Brazil
| | - Silvia De Carli
- Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | | | - Nilo Ikuta
- Simbios Biotecnologia, Cachoeirinha, Rio Grande do Sul, Brazil
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Tang Y, Yu H, Jiang X, Bao E, Wang D, Lu H. Genetic characterization of a novel pheasant-origin orthoreovirus using Next-Generation Sequencing. PLoS One 2022; 17:e0277411. [PMID: 36409667 PMCID: PMC9678273 DOI: 10.1371/journal.pone.0277411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/26/2022] [Indexed: 11/22/2022] Open
Abstract
A field isolate (Reo/SDWF /Pheasant/17608/20) of avian orthoreovirus (ARV), isolated from a flock of game-pheasants in Weifang, Shandong Province, was genetically characterized being a field variant or novel strain in our recent research studies in conducting whole genome sequencing by using Next-Generation Sequencing (NGS) technique on Illumina MiSeq platform. Among a total of 870,197 35-151-mer sequencing reads, 297,711 reads (34.21%) were identified as ARV sequences. The de novo assembly of the ARV reads resulted in generation of 10 ARV-related contigs with the average sequencing coverage from 1390× to 1977× according to 10 ARV genome segments. The complete genomes of this pheasant-origin ARV (Reo/SDWF /Pheasant/17608/20) were 23,495 bp in length and consist of 10 dsRNA segments ranged from 1192 bp (S4) to 3958 bp (L1) encoding 12 viral proteins. Sequence comparison between the SDWF17608 and classic ARV reference strains revealed that 58.1-100% nucleotide (nt) identities and 51.4-100% amino acid (aa) identities were in genome segment coding genes. The 10 RNA segments had conversed termini at 5' (5'-GCUUUU) and 3' (UCAUC-3') side, which were identical to the most published ARV strains. Phylogenetic analysis revealed that this pheasant ARV field variant was closely related with chicken ARV strains in 7 genome segment genes, but it possessed significant sequence divergence in M1, M3 and S2 segments. These findings suggested that this pheasant-origin field variant was a divergent ARV strain and was likely originated from reassortments between different chicken ARV strains.
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Affiliation(s)
- Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong Province, China
| | - Haiyang Yu
- Tianjin Ringpu Bio-Technology Co, Ltd., Tianjin, China
| | - Xiaoning Jiang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong Province, China
| | - Endong Bao
- Tianjin Ringpu Bio-Technology Co, Ltd., Tianjin, China
| | - Dong Wang
- Tianjin Ringpu Bio-Technology Co, Ltd., Tianjin, China
| | - Huaguang Lu
- Wiley Lab / Avian Virology, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States of America
- * E-mail:
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Huang Y, Zhang J, Dong J, Li L, Kuang R, Sun M, Liao M. Isolation and characterization of a new goose orthoreovirus causing liver and spleen focal necrosis in geese, China. Transbound Emerg Dis 2021; 69:3028-3034. [PMID: 34259392 DOI: 10.1111/tbed.14236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 02/09/2021] [Accepted: 07/09/2021] [Indexed: 11/27/2022]
Abstract
Since July 2020, an infectious disease characterized by liver and spleen white focal necrosis has been spreading widely through geese farms in many regions of China. A novel goose orthoreovirus (GRV), designated GRV-GD2020, was isolated from the liver and spleen of dead geese. Phylogenetic analysis and sequence comparison revealed that all the genes of GRV-GD2020 clustered with other waterfowl-origin orthoreovirus. However, the gene constellation of GRV-GD2020 was not similar to that of any particular strain. Instead, the genomic segments of GRV-GD2020 showed 27.5-97.3% similarities to that of other waterfowl-origin orthoreovirus isolates. Waterfowl-origin orthoreovirus infections characterized by liver and spleen focal necrosis had not emerged in recent years. The re-emergence of the disease may be related to the recombination of the genome segments of Muscovy duck reovirus (MDRV), GRV, and new-type duck orthoreovirus. In summary, we determined that the GRV-GD2020 strain, causing goose liver and spleen focal necrosis, is a new variant of waterfowl-origin orthoreovirus.
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Affiliation(s)
- Yunzhen Huang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Key Laboratory of Livestock Disease Prevention and Treatment of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Guangzhou, China
| | - Junqin Zhang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Key Laboratory of Livestock Disease Prevention and Treatment of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Guangzhou, China
| | - Jiawen Dong
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Key Laboratory of Livestock Disease Prevention and Treatment of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Guangzhou, China
| | - Linlin Li
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Key Laboratory of Livestock Disease Prevention and Treatment of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Guangzhou, China
| | - Ruihuan Kuang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Key Laboratory of Livestock Disease Prevention and Treatment of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Guangzhou, China
| | - Minhua Sun
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Key Laboratory of Livestock Disease Prevention and Treatment of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Guangzhou, China
| | - Ming Liao
- Guangdong Academy of Agricultural Sciences, Guangzhou, China
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Wang S, Lin F, Cheng X, Wang J, Zhu X, Xiao S, Zheng M, Huang M, Chen S, Chen S. The genomic constellation of a novel duck reovirus strain associated with hemorrhagic necrotizing hepatitis and splenitis in Muscovy ducklings in Fujian, China. Mol Cell Probes 2020; 53:101604. [PMID: 32502523 DOI: 10.1016/j.mcp.2020.101604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/08/2020] [Accepted: 05/18/2020] [Indexed: 10/24/2022]
Abstract
The complete sequence of a reovirus, strain NP03 associated with necrotic focus formation in the liver and spleen of Muscovy ducklings in Fujian Province, China in 2009, was determined and compared with sequences of other waterfowl and chicken-origin avian reoviruses (ARVs). Sequencing of the complete genomes of strain NP03 showed that they consisted of 23,418 bp and were divided into 10 segments, ranging from 1191 bp (S4) to 3959 bp (L1) in length, and all segments contained conserved sequences in the 5' non-coding region (GCUUUU) and 3' non-coding region (UCAUC). Pairwise sequence comparisons demonstrated that NP03 strain showed the highest similarity with novel waterfowl origin reoviruses (WRVs). The genome analysis revealed that the S1 segment of novel WRV is a tricistronic gene, encoding the overlapping open reading frames (ORFs) for p10, p18, and σC, similar to the ARV S1 gene, but distinct from classical WRV S4 genome segment, which contained two overlapping ORFs encoding p10 and σC. Phylogenetic analyses of the nucleotide sequences of all 10 segments revealed that NP03 strain was clustered together with other novel WRVs and were distinct from classical WRVs and chicken-origin ARVs. The analyses also showed possible intra-segmental reassortment events in the segments encoding λA, λB, μB, μNS, σA, and σNS between novel and classical WRVs. Potential recombination events detection in segment L1 suggests that NP03 strain may be recombinants of novel WRVs. Based on our genetic analyses, multiple reassortment events, intra-segmental recombination, and accumulation of point mutations have possibly contributed to the emergence of this novel genotype of WRV, identified in China.
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Affiliation(s)
- Shao Wang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China.
| | - Fengqiang Lin
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China
| | - Xiaoxia Cheng
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China
| | - Jinxiang Wang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China
| | - Xiaoli Zhu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China
| | - Shifeng Xiao
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China
| | - Min Zheng
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China
| | - Meiqing Huang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China
| | - Shaoying Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China.
| | - Shilong Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China; Fujian Animal Diseases Control Technology Development Center, Fuzhou, 350013, China.
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Wang H, Gao B, Chen H, Diao Y, Tang Y. Isolation and characterization of a variant duck orthoreovirus causing spleen necrosis in Peking ducks, China. Transbound Emerg Dis 2019; 66:2033-2044. [PMID: 31131546 DOI: 10.1111/tbed.13252] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 04/26/2019] [Accepted: 05/04/2019] [Indexed: 01/01/2023]
Abstract
Since December 2017, an infectious disease has caused economic hardship for duck farms and breeding ducks in many regions of China. This disease characterized by spleen necrosis and swelling, is due to a variant strain of duck orthoreovirus (DRV) (Duck/N-DRV-XT18/China/2018), which we isolated from the spleen of diseased ducks. After isolating the virus, we used next-generation sequencing technology to determine the entire genomic of the virus. Our phylogenetic analysis of 10 genomic segments showed that the N-DRV-XT18 strain is closely related to orthoreovirus isolates derived from ducks and geese, with nucleotide sequence identities for 10 genomic fragments ranging between 49.8% and 99.3%. In contract, the nucleotide sequence of N-DRV-XT18 genomic fragments are only 38.6% to 78.8% similar to the chicken orthoreovirus isolate. Therefore, we determined that this pathogen, causing duck spleen necrosis, is a new variant of a duck orthoreovirus that is significantly different from any previously reported waterfowl-derived othoreovirus.
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Affiliation(s)
- Hongzhi Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Bin Gao
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Hao Chen
- College of Life Science, Qufu Normal University, Qufu, China
| | - Youxiang Diao
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
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9
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Tang Y, Lin L, Sebastian A, Lu H. Detection and characterization of two co-infection variant strains of avian orthoreovirus (ARV) in young layer chickens using next-generation sequencing (NGS). Sci Rep 2016; 6:24519. [PMID: 27089943 PMCID: PMC4835796 DOI: 10.1038/srep24519] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 03/31/2016] [Indexed: 11/25/2022] Open
Abstract
Using next-generation sequencing (NGS) for full genomic characterization studies of the newly emerging avian orthoreovirus (ARV) field strains isolated in Pennsylvania poultry, we identified two co-infection ARV variant strains from one ARV isolate obtained from ARV-affected young layer chickens. The de novo assembly of the ARV reads generated 19 contigs of two different ARV variant strains according to 10 genome segments of each ARV strain. The two variants had the same M2 segment. The complete genomes of each of the two variant strains were 23,493 bp in length, and 10 dsRNA segments ranged from 1192 bp (S4) to 3958 bp (L1), encoding 12 viral proteins. Sequence comparison of nucleotide (nt) and amino acid (aa) sequences of all 10 genome segments revealed 58.1–100% and 51.4–100% aa identity between the two variant strains, and 54.3–89.4% and 49.5–98.1% aa identity between the two variants and classic vaccine strains. Phylogenetic analysis revealed a moderate to significant nt sequence divergence between the two variant and ARV reference strains. These findings have demonstrated the first naturally occurring co-infection of two ARV variants in commercial young layer chickens, providing scientific evidence that multiple ARV strains can be simultaneously present in one host species of chickens.
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Affiliation(s)
- Yi Tang
- Wiley Lab/Avian Virology, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, United States
| | - Lin Lin
- Wiley Lab/Avian Virology, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, United States
| | - Aswathy Sebastian
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, United States
| | - Huaguang Lu
- Wiley Lab/Avian Virology, Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, United States
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