Avian Orthoreovirus

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Dabing Zhang - One of the best experts on this subject based on the ideXlab platform.

  • a duck reovirus variant with a unique deletion in the sigma c gene exhibiting high pathogenicity in pekin ducklings
    Virus Research, 2016
    Co-Authors: Xianjin Zheng, Dan Wang, Kang Ning, Te Liang, Minghang Wang, Meng Jiang, Dabing Zhang
    Abstract:

    A novel strain of duck reovirus (DRV) associated with a high mortality in Pekin ducklings in China, 2013, was isolated and characterized. This strain (designated as HN5d) grew well in Vero cells and produced marked cytopathic effects. HN5d contains 10 dsRNA genome segments, a typical feature of Avian Orthoreovirus. Following cloning, sequencing, and sequence analysis of the genome segments, a unique deletion of 18 amino acids was found in the sigma C protein of HN5d when compared with that of the recent Chinese waterfowl reoviruses (e.g., DRV 091). Phylogenetic analysis of cDNA amplicons of segments encoding for the outer capsid proteins revealed that HN5d is a novel genotype 2 waterfowl reovirus isolate. Inoculation of Pekin ducklings with HN5d resulted in splenic necrosis, a typical feature of "Duck spleen necrosis disease" (DSND) discovered in China in 2006. Unlike the typical DSND, HN5d produced severer hemorrhagic and/or necrotic lesions in livers of experimentally infected ducklings. 20-30% of death was observed during the first 7 day in the experimentally exposed birds. These findings suggest that HN5d is a novel duck reovirus isolate with severer pathogenicity in Pekin ducklings.

  • complete sequence of a reovirus associated with necrotic focus formation in the liver and spleen of muscovy ducklings
    Veterinary Microbiology, 2013
    Co-Authors: Dan Wang, Jiajian Shi, Yuan Yuan, Lisha Zheng, Dabing Zhang
    Abstract:

    The complete sequence of a reovirus, strain 815-12 associated with necrotic focus formation in the liver and spleen of Muscovy ducklings in China, was determined and compared with sequences of other duck-, goose-, and chicken-origin reoviruses. The 815-12 genome comprised 22,969 bp with 10 dsRNA segments ranging from 1125 bp (S4) to 3958 bp (L1), all of which (except S4) were almost identical in length to the cognate segments of other waterfowl and chicken isolates. Detailed analyses revealed that 815-12 and other waterfowl isolates contained the conserved 3'-terminal pentanucleotide sequence (UCAUC-3') of the Orthoreoviruses and 5'-terminal hexanucleotide sequence (5'-GCUUUU) of Avian Orthoreoviruses (ARVs), and conserved functional motifs previously identified in ARV proteins. Several notable differences, including organization of the polycistronic genome segments and genomic coding assignments of the S segments, existed between viruses represented by 815-12 and the waterfowl reoviruses emerging in China in recent years; the latter was somewhat similar to chicken isolates. Pairwise sequence comparisons demonstrated extensive sequence diversity among the various waterfowl isolates and between waterfowl and chicken isolates. Phylogenetic analyses identified two genetic groups for waterfowl reoviruses, and potential genetic reassortment of segment M2 between waterfowl and chicken reoviruses and segments encoding for λA, λB, μA, μNS and σA between waterfowl reoviruses. Taken together, it was suggested that common designation ARV-Wa should be used to represent ARV isolates from different waterfowl species and that the two ARV-Wa genotypes should be considered as two separate groups distinct from chicken isolates within the species Avian Orthoreovirus.

  • complete genomic sequence of a new muscovy duck origin reovirus from china
    Journal of Virology, 2012
    Co-Authors: Dan Wang, Cun Zhang, Yu Huang, Dabing Zhang
    Abstract:

    ABSTRACT The complete genomic sequence of a new Muscovy duck-origin reovirus (N-MDRV), strain J18 from China, was determined. The virus has a tricistronic S1 genome segment that is distinct from the originally described MDRV, which possesses a bicistronic S4 genome segment. Pairwise comparisons and phylogenetic analyses suggest that N-MDRV J18 is a new isolate within the species Avian Orthoreovirus.

  • Complete Genomic Sequence of a Reovirus Isolate from Pekin Ducklings in China
    Journal of virology, 2012
    Co-Authors: Dan Wang, Jiajian Shi, Tiantian Jiang, Yuan Yuan, Dabing Zhang
    Abstract:

    The complete genomic sequence of a Pekin duck origin reovirus (DRV) from China was determined. The genome comprises 23,419 bp, with segments ranging from 1,191 bp (S4) to 3,959 bp (L1). Pairwise comparisons and phylogenetic analysis indicate that the Pekin duck origin reovirus is more closely related to the new type of Muscovy duck origin reovirus (N-MDRV) identified recently than to the chicken origin Avian Orthoreovirus (ARV) and the originally described Muscovy duck origin reovirus (ARV-Md).

Yi Tang - One of the best experts on this subject based on the ideXlab platform.

  • discovery of a novel recombinant Avian Orthoreovirus in china
    Veterinary Microbiology, 2021
    Co-Authors: Tian Yan, Youxiang Diao, Xiaoning Jiang, Hongzhi Wang, Liuchuan Guo, Zhonghui Yao, Siming Zhu, Yi Tang
    Abstract:

    Abstract In mid-2020, using next-generation sequencing (NGS) technology, we identified a recombinant cluster 2 Avian Orthoreovirus (ARV) variant named PHC-2020-0545, isolated from tendons of 33-day-old broilers with leg swelling in China. Complete genomic sequencing and analyses demonstrated that the isolate was genetically significantly distinct from known ARV strains in M1 and M3 genes and its σC coding gene had an extremely high variability, compared with the identified ARV strains grouped into other genotyping cluster. Further analysis showed that many base substitutions were silent and non-silent substitutions are most likely to occur in the first positions of codons. Multiple segmental recombination, intra-segmental recombination and accumulation of point mutations might contribute to the emergence of this isolate. The PHC-2020-0545 strain had a strong replication ability in 1-day-old broilers, and mainly affected the movement, digestion and metabolism of broilers. In addition, the infection route of the isolate is related to its pathogenicity to broilers. Therefore, combined with its unique genetic characteristics and potential origin, we determined that the PHC-2020-0545 field strain is a novel recombinant ARV strain, which has certain reference value for the preparation and evaluation of new vaccines.

  • synergistic pathogenicity in sequential coinfection with fowl adenovirus type 4 and Avian Orthoreovirus
    Veterinary Microbiology, 2020
    Co-Authors: Tian Yan, Hongzhi Wang, Youxiang Diao, Siming Zhu, Yi Tang
    Abstract:

    Hydropericardium hepatitis syndrome (HHS) is a fatal disease caused by fowl adenovirus serotype 4 (FAdV-4). Avian viral arthritis is an infectious disease characterized by movement disorders caused by Avian Orthoreovirus (ARV). In the early 2019, our epidemiologic survey on poultry diseases in eight commercial broiler farms in China showed that FAdV-4 and ARV have a high coinfection rate, accounting for 63 % of all ARV-positive samples. We designed chicken embryo and animal models to investigate the synergistic pathogenicity of FAdV-4 and ARV. Weakness and inappetence were observed in all specific-pathogen-free (SPF) chickens of the experimental group. FAdV-4 and ARV coinfection caused severe embryonic body and hepatic hemorrhage in SPF chicken embryos. Compared with the singular ARV-infected group, joint swelling was more severe in all coinfected groups. Compared with single virus infection, the coinfection of the two viruses increased the mortality of SPF chicken embryos and chickens. FAdV-4 and ARV coinfection resulted in significantly severe macroscopic and microscopic lesions of the liver, spleen, and kidney of SPF chickens. The detection results of viral load in allantoic fluid, liver, and cloacal swabs indicated that ARV enhanced FAdV-4 replication in SPF chicken embryos and chickens. Cytokine detection showed a significant change in interleukin-1 (IL-1), IL-6, and interferon-α (IFN-α) levels in coinfected groups compared with those in the single-infected groups. Additionally, FAdV-4 and ARV coinfection caused severe damage to the SPF chicken's immune system. In summary, these findings provide insights into the pathology, prevention, and treatment of FAdV-4 and ARV coinfection.

  • sequencing and phylogenetic analysis of partial s1 genes of Avian Orthoreovirus isolates in shandong province during 2015 2017
    Poultry Science, 2020
    Co-Authors: Hao Chen, Yi Tang, Min Yan, Youxiang Diao
    Abstract:

    Outbreaks of Avian Orthoreovirus (ARV) infection with primary symptoms of arthritis/tenosynovitis syndrome have been occurring more frequently in broiler flocks in China in recent years. This study aimed to investigate the genetic characteristics of ARV field strains in broiler flocks exhibiting arthritis/tenosynovitis syndrome from 9 cities in Shandong province during 2015 to 2017. A total of 64 synovial and tendon samples were obtained from broilers with significant arthritis/tenosynovitis syndrome, and 21 ARV field strains were obtained. Phylogenetic analysis of the σC nt/aa sequences revealed that only 4 isolates were clustered in genotype I, including vaccine strains S1133, 1733, and most of the ARV field strains identified previously in China. Eleven and 6 ARV field isolates were identified in genotypes II and V, sharing 70.9 to 76.0% and 53.0 to 55.2% nt identities with the vaccine strains, respectively. Previous studies in China have not reported these 2 serotypes of field strains, and prevalence of these ARV variants may be increasing in Chinese broiler flocks. Results of this study suggest that large-scale investigation of epidemic ARV should be conducted to explore the genetic diversity of ARV field isolates in China.

  • isolation and genomic characterization of a novel chicken orign Orthoreovirus causing goslings hepatitis
    Veterinary Microbiology, 2018
    Co-Authors: Jing Yang, Jiajun Tian, Yi Tang, Lin Chen, Youxiang Diao
    Abstract:

    Abstract A severe infectious disease characterized by nephritis, hepatitis and splenitis has attacked goslings around Shandong province in China since 2016. A novel chicken-origin Avian Orthoreovirus (ARV) was isolated with LMH cells from affected goslings named Reo/Goose/SDPY/1116/17 (SDPY-ARV) strain, and the infection was successfully reproduced experimentally. The ARV-SDPY full genome sequencing was conducted using Next-Generation Sequencing (NGS) technique on Illumina HiSeq platform. The complete genome of SDPY-ARV was 23,427 bp in length and consist of 10 dsRNA segments ranged from 1192 bp (S4) to 3958 bp (L1) which encoding 12 viral proteins. Genomic sequence analysis showed that the SDPY-ARV strain is in the same branch with broiler, pheasant-origin ARV isolates, and shares 51.8–96.2% of nucleotide identity of σC gene with them; while only 49.3–50.3% with waterfowl isolates. In addition, the occurrence of 10 segments genetic reassortment of SDPY strain is confirmed among the PA15511, the 1733 and the PA13649 strains from America. In conclusion, the causative agent of gosling hemorrhagic necrotic hepatitis and nephritis occurring in China is a novel chicken-origin goose Orthoreovirus.

  • complete genome sequence of a novel Avian Orthoreovirus isolated from gosling china
    Archives of Virology, 2018
    Co-Authors: Xiaoyu Niu, Jing Yang, Jiajun Tian, Yi Tang, Xiaoning Jiang, Hongzhi Wang, Youxiang Diao
    Abstract:

    Avian Orthoreovirus (ARV) has been considered as a significant pathogen causing great infectious diseases to the Avian, like broiler and waterfowl. The genome of this novel ARV(Reo/SDPY/Goose) was completely sequenced by next-generation sequencing. The complete genome was found to be 23517 bp in length with 10 segments. Although the Reo/SDPY/Goose was isolated from the gosling, it shares great similarity, no matter which segment within the genome, with those published as Avian-origin reovirus. Genomic analysis revealed that this virus was distinct from published ARV strains and met criteria to become a novel ARV strain.

Dan Wang - One of the best experts on this subject based on the ideXlab platform.

  • a duck reovirus variant with a unique deletion in the sigma c gene exhibiting high pathogenicity in pekin ducklings
    Virus Research, 2016
    Co-Authors: Xianjin Zheng, Dan Wang, Kang Ning, Te Liang, Minghang Wang, Meng Jiang, Dabing Zhang
    Abstract:

    A novel strain of duck reovirus (DRV) associated with a high mortality in Pekin ducklings in China, 2013, was isolated and characterized. This strain (designated as HN5d) grew well in Vero cells and produced marked cytopathic effects. HN5d contains 10 dsRNA genome segments, a typical feature of Avian Orthoreovirus. Following cloning, sequencing, and sequence analysis of the genome segments, a unique deletion of 18 amino acids was found in the sigma C protein of HN5d when compared with that of the recent Chinese waterfowl reoviruses (e.g., DRV 091). Phylogenetic analysis of cDNA amplicons of segments encoding for the outer capsid proteins revealed that HN5d is a novel genotype 2 waterfowl reovirus isolate. Inoculation of Pekin ducklings with HN5d resulted in splenic necrosis, a typical feature of "Duck spleen necrosis disease" (DSND) discovered in China in 2006. Unlike the typical DSND, HN5d produced severer hemorrhagic and/or necrotic lesions in livers of experimentally infected ducklings. 20-30% of death was observed during the first 7 day in the experimentally exposed birds. These findings suggest that HN5d is a novel duck reovirus isolate with severer pathogenicity in Pekin ducklings.

  • complete sequence of a reovirus associated with necrotic focus formation in the liver and spleen of muscovy ducklings
    Veterinary Microbiology, 2013
    Co-Authors: Dan Wang, Jiajian Shi, Yuan Yuan, Lisha Zheng, Dabing Zhang
    Abstract:

    The complete sequence of a reovirus, strain 815-12 associated with necrotic focus formation in the liver and spleen of Muscovy ducklings in China, was determined and compared with sequences of other duck-, goose-, and chicken-origin reoviruses. The 815-12 genome comprised 22,969 bp with 10 dsRNA segments ranging from 1125 bp (S4) to 3958 bp (L1), all of which (except S4) were almost identical in length to the cognate segments of other waterfowl and chicken isolates. Detailed analyses revealed that 815-12 and other waterfowl isolates contained the conserved 3'-terminal pentanucleotide sequence (UCAUC-3') of the Orthoreoviruses and 5'-terminal hexanucleotide sequence (5'-GCUUUU) of Avian Orthoreoviruses (ARVs), and conserved functional motifs previously identified in ARV proteins. Several notable differences, including organization of the polycistronic genome segments and genomic coding assignments of the S segments, existed between viruses represented by 815-12 and the waterfowl reoviruses emerging in China in recent years; the latter was somewhat similar to chicken isolates. Pairwise sequence comparisons demonstrated extensive sequence diversity among the various waterfowl isolates and between waterfowl and chicken isolates. Phylogenetic analyses identified two genetic groups for waterfowl reoviruses, and potential genetic reassortment of segment M2 between waterfowl and chicken reoviruses and segments encoding for λA, λB, μA, μNS and σA between waterfowl reoviruses. Taken together, it was suggested that common designation ARV-Wa should be used to represent ARV isolates from different waterfowl species and that the two ARV-Wa genotypes should be considered as two separate groups distinct from chicken isolates within the species Avian Orthoreovirus.

  • complete genomic sequence of a new muscovy duck origin reovirus from china
    Journal of Virology, 2012
    Co-Authors: Dan Wang, Cun Zhang, Yu Huang, Dabing Zhang
    Abstract:

    ABSTRACT The complete genomic sequence of a new Muscovy duck-origin reovirus (N-MDRV), strain J18 from China, was determined. The virus has a tricistronic S1 genome segment that is distinct from the originally described MDRV, which possesses a bicistronic S4 genome segment. Pairwise comparisons and phylogenetic analyses suggest that N-MDRV J18 is a new isolate within the species Avian Orthoreovirus.

  • Complete Genomic Sequence of a Reovirus Isolate from Pekin Ducklings in China
    Journal of virology, 2012
    Co-Authors: Dan Wang, Jiajian Shi, Tiantian Jiang, Yuan Yuan, Dabing Zhang
    Abstract:

    The complete genomic sequence of a Pekin duck origin reovirus (DRV) from China was determined. The genome comprises 23,419 bp, with segments ranging from 1,191 bp (S4) to 3,959 bp (L1). Pairwise comparisons and phylogenetic analysis indicate that the Pekin duck origin reovirus is more closely related to the new type of Muscovy duck origin reovirus (N-MDRV) identified recently than to the chicken origin Avian Orthoreovirus (ARV) and the originally described Muscovy duck origin reovirus (ARV-Md).

Youxiang Diao - One of the best experts on this subject based on the ideXlab platform.

  • discovery of a novel recombinant Avian Orthoreovirus in china
    Veterinary Microbiology, 2021
    Co-Authors: Tian Yan, Youxiang Diao, Xiaoning Jiang, Hongzhi Wang, Liuchuan Guo, Zhonghui Yao, Siming Zhu, Yi Tang
    Abstract:

    Abstract In mid-2020, using next-generation sequencing (NGS) technology, we identified a recombinant cluster 2 Avian Orthoreovirus (ARV) variant named PHC-2020-0545, isolated from tendons of 33-day-old broilers with leg swelling in China. Complete genomic sequencing and analyses demonstrated that the isolate was genetically significantly distinct from known ARV strains in M1 and M3 genes and its σC coding gene had an extremely high variability, compared with the identified ARV strains grouped into other genotyping cluster. Further analysis showed that many base substitutions were silent and non-silent substitutions are most likely to occur in the first positions of codons. Multiple segmental recombination, intra-segmental recombination and accumulation of point mutations might contribute to the emergence of this isolate. The PHC-2020-0545 strain had a strong replication ability in 1-day-old broilers, and mainly affected the movement, digestion and metabolism of broilers. In addition, the infection route of the isolate is related to its pathogenicity to broilers. Therefore, combined with its unique genetic characteristics and potential origin, we determined that the PHC-2020-0545 field strain is a novel recombinant ARV strain, which has certain reference value for the preparation and evaluation of new vaccines.

  • synergistic pathogenicity in sequential coinfection with fowl adenovirus type 4 and Avian Orthoreovirus
    Veterinary Microbiology, 2020
    Co-Authors: Tian Yan, Hongzhi Wang, Youxiang Diao, Siming Zhu, Yi Tang
    Abstract:

    Hydropericardium hepatitis syndrome (HHS) is a fatal disease caused by fowl adenovirus serotype 4 (FAdV-4). Avian viral arthritis is an infectious disease characterized by movement disorders caused by Avian Orthoreovirus (ARV). In the early 2019, our epidemiologic survey on poultry diseases in eight commercial broiler farms in China showed that FAdV-4 and ARV have a high coinfection rate, accounting for 63 % of all ARV-positive samples. We designed chicken embryo and animal models to investigate the synergistic pathogenicity of FAdV-4 and ARV. Weakness and inappetence were observed in all specific-pathogen-free (SPF) chickens of the experimental group. FAdV-4 and ARV coinfection caused severe embryonic body and hepatic hemorrhage in SPF chicken embryos. Compared with the singular ARV-infected group, joint swelling was more severe in all coinfected groups. Compared with single virus infection, the coinfection of the two viruses increased the mortality of SPF chicken embryos and chickens. FAdV-4 and ARV coinfection resulted in significantly severe macroscopic and microscopic lesions of the liver, spleen, and kidney of SPF chickens. The detection results of viral load in allantoic fluid, liver, and cloacal swabs indicated that ARV enhanced FAdV-4 replication in SPF chicken embryos and chickens. Cytokine detection showed a significant change in interleukin-1 (IL-1), IL-6, and interferon-α (IFN-α) levels in coinfected groups compared with those in the single-infected groups. Additionally, FAdV-4 and ARV coinfection caused severe damage to the SPF chicken's immune system. In summary, these findings provide insights into the pathology, prevention, and treatment of FAdV-4 and ARV coinfection.

  • sequencing and phylogenetic analysis of partial s1 genes of Avian Orthoreovirus isolates in shandong province during 2015 2017
    Poultry Science, 2020
    Co-Authors: Hao Chen, Yi Tang, Min Yan, Youxiang Diao
    Abstract:

    Outbreaks of Avian Orthoreovirus (ARV) infection with primary symptoms of arthritis/tenosynovitis syndrome have been occurring more frequently in broiler flocks in China in recent years. This study aimed to investigate the genetic characteristics of ARV field strains in broiler flocks exhibiting arthritis/tenosynovitis syndrome from 9 cities in Shandong province during 2015 to 2017. A total of 64 synovial and tendon samples were obtained from broilers with significant arthritis/tenosynovitis syndrome, and 21 ARV field strains were obtained. Phylogenetic analysis of the σC nt/aa sequences revealed that only 4 isolates were clustered in genotype I, including vaccine strains S1133, 1733, and most of the ARV field strains identified previously in China. Eleven and 6 ARV field isolates were identified in genotypes II and V, sharing 70.9 to 76.0% and 53.0 to 55.2% nt identities with the vaccine strains, respectively. Previous studies in China have not reported these 2 serotypes of field strains, and prevalence of these ARV variants may be increasing in Chinese broiler flocks. Results of this study suggest that large-scale investigation of epidemic ARV should be conducted to explore the genetic diversity of ARV field isolates in China.

  • isolation and genomic characterization of a novel chicken orign Orthoreovirus causing goslings hepatitis
    Veterinary Microbiology, 2018
    Co-Authors: Jing Yang, Jiajun Tian, Yi Tang, Lin Chen, Youxiang Diao
    Abstract:

    Abstract A severe infectious disease characterized by nephritis, hepatitis and splenitis has attacked goslings around Shandong province in China since 2016. A novel chicken-origin Avian Orthoreovirus (ARV) was isolated with LMH cells from affected goslings named Reo/Goose/SDPY/1116/17 (SDPY-ARV) strain, and the infection was successfully reproduced experimentally. The ARV-SDPY full genome sequencing was conducted using Next-Generation Sequencing (NGS) technique on Illumina HiSeq platform. The complete genome of SDPY-ARV was 23,427 bp in length and consist of 10 dsRNA segments ranged from 1192 bp (S4) to 3958 bp (L1) which encoding 12 viral proteins. Genomic sequence analysis showed that the SDPY-ARV strain is in the same branch with broiler, pheasant-origin ARV isolates, and shares 51.8–96.2% of nucleotide identity of σC gene with them; while only 49.3–50.3% with waterfowl isolates. In addition, the occurrence of 10 segments genetic reassortment of SDPY strain is confirmed among the PA15511, the 1733 and the PA13649 strains from America. In conclusion, the causative agent of gosling hemorrhagic necrotic hepatitis and nephritis occurring in China is a novel chicken-origin goose Orthoreovirus.

  • complete genome sequence of a novel Avian Orthoreovirus isolated from gosling china
    Archives of Virology, 2018
    Co-Authors: Xiaoyu Niu, Jing Yang, Jiajun Tian, Yi Tang, Xiaoning Jiang, Hongzhi Wang, Youxiang Diao
    Abstract:

    Avian Orthoreovirus (ARV) has been considered as a significant pathogen causing great infectious diseases to the Avian, like broiler and waterfowl. The genome of this novel ARV(Reo/SDPY/Goose) was completely sequenced by next-generation sequencing. The complete genome was found to be 23517 bp in length with 10 segments. Although the Reo/SDPY/Goose was isolated from the gosling, it shares great similarity, no matter which segment within the genome, with those published as Avian-origin reovirus. Genomic analysis revealed that this virus was distinct from published ARV strains and met criteria to become a novel ARV strain.

Cun Zhang - One of the best experts on this subject based on the ideXlab platform.

  • isolation and genomic characterization of a classical muscovy duck reovirus isolated in zhejiang china
    Infection Genetics and Evolution, 2013
    Co-Authors: Tao Yun, Liu Chen, Jionggang Hua, Cun Zhang
    Abstract:

    Abstract A classical Muscovy reovirus was isolated from a sick Muscovy duck with white necrotic foci in its liver in Zhejiang, China, in 2000. This classical reovirus was propagated in a chicken fibroblast cell line (DF-1) with obvious cytopathic effects. Its genome was 22,967 bp in length, with approximately 51.41% G + C content and 10 dsRNA segments encoding 11 proteins, which formed a 3/3/4 electrophoretic PAGE profile pattern. The length of the genomic segments was similar to those of Avian Orthoreoviruses (ARV and N-MDRV), ranging from 3959 nt (L1) to 1191 nt (S4). All of the segments have the conserved terminal sequences 5′-GCUUUU——UUCAUC-3′, and with the exception of the S4 segment, all the genome segments apparently encode one single primary translation product. The genome analysis revealed that the S4 segment of classical MDRV is a bicistronic gene, encoding the overlapping ORFs for p10 and σC but distinct from ARV and N-MDRV/N-GRV, which codes for p10, p18 and σC via the tricistronic S1 segment. A comparative sequence analysis provided evidence indicating extensive sequence divergence between classical MDRV and other Avian Orthoreoviruses. A phylogenetic analysis based on the RNA-dependent RNA polymerase (RdRp) and the major outer capsid proteins σC was performed. Members of the DRVs in the Avian Orthoreovirus species were clustered into two genetic groups (classical MDRV and N-MDRV genotype), and the classical MDRV isolates formed distinct lineages (China and Europe lineages), suggesting that the classical MDRVs isolated in restricted geographical region are evolving by different and independent pathways.

  • complete genomic sequence of a new muscovy duck origin reovirus from china
    Journal of Virology, 2012
    Co-Authors: Dan Wang, Cun Zhang, Yu Huang, Dabing Zhang
    Abstract:

    ABSTRACT The complete genomic sequence of a new Muscovy duck-origin reovirus (N-MDRV), strain J18 from China, was determined. The virus has a tricistronic S1 genome segment that is distinct from the originally described MDRV, which possesses a bicistronic S4 genome segment. Pairwise comparisons and phylogenetic analyses suggest that N-MDRV J18 is a new isolate within the species Avian Orthoreovirus.