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Rtishchev A, Treshchalina A, Shustova E, Boravleva E, Gambaryan A. An Outbreak of Newcastle Disease Virus in the Moscow Region in the Summer of 2022. Vet Sci 2023; 10:404. [PMID: 37368790 DOI: 10.3390/vetsci10060404] [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: 04/26/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
In August 2022 on a backyard farm in the Moscow region of Russia, mortality was observed among chickens, and all 45 birds of a particular farm died or were slaughtered after the onset of symptoms within a few days. Paramyxovirus was isolated from the diseased birds. Based on the nucleotide sequences of the F and NP gene fragments, it was determined that the virus belonged to subgenotype VII.1 AAvV-1 class II. The cleavage site of the F gene 109SGGRRQKRFIG119 and T in 546 and 555 position of the NP gene were typical for the velogenic type. The genetically closest NDV isolates were found in Iran. The mean time of death of 10-day-old chicken embryos upon infection with the minimal infectious dose was 52 h, which is typical for the velogenic pathotype. The virus caused 100% death of six-week-old chickens during oral infection as well as 100% mortality of all contact chickens, including those located in remote cages, which proves the ability of the virus to spread not only by the fecal-oral route but also by the aerosol route. That demonstrates a high level of pathogenicity and contagiousness of the isolated strain for chicken. However, mice intranasally infected with high doses of the virus did not die.
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Affiliation(s)
- Artyom Rtishchev
- Federal State Budgetary Scientific Institution «I. Mechnikov Research Institute of Vaccines and Sera», 105064 Moscow, Russia
| | - Anastasia Treshchalina
- Chumakov Federal Scientific Center for the Research and Development of Immune-and-Biological Products, Village of Institute of Poliomyelitis, Settlement "Moskovskiy", 108819 Moscow, Russia
| | - Elena Shustova
- Chumakov Federal Scientific Center for the Research and Development of Immune-and-Biological Products, Village of Institute of Poliomyelitis, Settlement "Moskovskiy", 108819 Moscow, Russia
| | - Elizaveta Boravleva
- Chumakov Federal Scientific Center for the Research and Development of Immune-and-Biological Products, Village of Institute of Poliomyelitis, Settlement "Moskovskiy", 108819 Moscow, Russia
| | - Alexandra Gambaryan
- Chumakov Federal Scientific Center for the Research and Development of Immune-and-Biological Products, Village of Institute of Poliomyelitis, Settlement "Moskovskiy", 108819 Moscow, Russia
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Young KT, Stephens JQ, Poulson RL, Stallknecht DE, Dimitrov KM, Butt SL, Stanton JB. Putative Novel Avian Paramyxovirus (AMPV) and Reidentification of APMV-2 and APMV-6 to the Species Level Based on Wild Bird Surveillance (United States, 2016-2018). Appl Environ Microbiol 2022; 88:e0046622. [PMID: 35612300 PMCID: PMC9195946 DOI: 10.1128/aem.00466-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/20/2022] [Indexed: 11/20/2022] Open
Abstract
Avian paramyxoviruses (APMVs) (subfamily Avulavirinae) have been isolated from over 200 species of wild and domestic birds around the world. The International Committee on Taxonomy of Viruses (ICTV) currently defines 22 different APMV species, with Avian orthoavulavirus 1 (whose viruses are designated APMV-1) being the most frequently studied due to its economic burden to the poultry industry. Less is known about other APMV species, including limited knowledge on the genetic diversity in wild birds, and there is a paucity of public whole-genome sequences for APMV-2 to -22. The goal of this study was to use MinION sequencing to genetically characterize APMVs isolated from wild bird swab samples collected during 2016 to 2018 in the United States. Multiplexed MinION libraries were prepared using a random strand-switching approach using 37 egg-cultured, influenza-negative, hemagglutination-positive samples. Forty-one APMVs were detected, with 37 APMVs having complete polymerase coding sequences allowing for species identification using ICTV's current Paramyxoviridae phylogenetic methodology. APMV-1, -4, -6, and -8 viruses were classified, one putative novel species (Avian orthoavulavirus 23) was identified from viruses isolated in this study, two putative new APMV species (Avian metaavulavirus 24 and 27) were identified from viruses isolated in this study and from retrospective GenBank sequences, and two putative new APMV species (Avian metaavulavirus 25 and 26) were identified solely from retrospective GenBank sequences. Furthermore, coinfections of APMVs were identified in four samples. The potential limitations of the branch length being the only species identification criterion and the potential benefit of a group pairwise distance analysis are discussed. IMPORTANCE Most species of APMVs are understudied and/or underreported, and many species were incidentally identified from asymptomatic wild birds; however, the disease significance of APMVs in wild birds is not fully determined. The rapid rise in high-throughput sequencing coupled with avian influenza surveillance programs have identified 12 different APMV species in the last decade and have challenged the resolution of classical serological methods to identify new viral species. Currently, ICTV's only criterion for Paramyxoviridae species classification is the requirement of a branch length of >0.03 using a phylogenetic tree constructed from polymerase (L) amino acid sequences. The results from this study identify one new APMV species, propose four additional new APMV species, and highlight that the criterion may have insufficient resolution for APMV species demarcation and that refinement or expansion of this criterion may need to be established for Paramyxoviridae species identification.
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Affiliation(s)
- Kelsey T. Young
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Jazz Q. Stephens
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Rebecca L. Poulson
- Department of Population Health, Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, Georgia, USA
| | - David E. Stallknecht
- Department of Population Health, Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, Georgia, USA
| | - Kiril M. Dimitrov
- Department of Virology, Texas A&M University, College Station, Texas, USA
| | - Salman L. Butt
- Department of Pathology, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - James B. Stanton
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
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Aziz-ul-Rahman, Munir M, Shabbir MZ. Comparative evolutionary and phylogenomic analysis of Avian avulaviruses 1–20. Mol Phylogenet Evol 2018; 127:931-951. [DOI: 10.1016/j.ympev.2018.06.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 05/15/2018] [Accepted: 06/25/2018] [Indexed: 12/20/2022]
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Chen Y, Ding Z, Liu X, Chen J, Li J, Fei Y, Liu Z, Stoeger T, Bi Y, Yin R. Biological and phylogenetic characterization of a novel hemagglutination-negative avian avulavirus 6 isolated from wild waterfowl in China. Transbound Emerg Dis 2018; 65:1421-1428. [PMID: 30146734 PMCID: PMC7169737 DOI: 10.1111/tbed.13005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/08/2018] [Accepted: 08/21/2018] [Indexed: 02/05/2023]
Abstract
Up to now only nine whole genome sequences of avian avulavirus 6 (AAvV‐6) had been documented in the world since the first discovery of AAvV‐6 (AAvV‐6/duck/HongKong/18/199/77) at a domestic duck in 1977 from Hong Kong of China. Very limited information is known about the regularities of transmission, genetic and biological characteristics of AAvV‐6 because of the lower isolation rate and mild losses for poultry industry. To better further explore the relationships among above factors, an AAvV‐6 epidemiological surveillance of domestic poultry and wild birds in six provinces of China suspected of sites of inter‐species transmission and being intercontinental flyways during the year 2013–2017 was conducted. Therefore, 9,872 faecal samples from wild birds and 1,642 cloacal and tracheal swab samples from clinically healthy poultry of live bird market (LBM) were collected respectively. However, only one novel hemagglutination‐negative AAvV‐6 isolate (AAvV‐6/mallard/Hubei/2015) was isolated from a fresh faecal sample obtained from mallard at a wetland of Hubei province. Sequencing and phylogenetic analyses of this AAvV‐6 isolate (AAvV‐6/mallard/Hubei/2015) indicated that this isolate grouping to genotype I were epidemiological intercontinentally linked with viruses from the wild birds in Europe and America. Meanwhile, at least two genotypes (I and II) are existed within serotype AAvV‐6. In additional, this novel hemagglutination‐negative AAvV‐6 isolate in chicken embryos restored its hemagglutination when pre‐treated with trypsin. These findings, together with data from other AAvV‐6, suggest potential epidemiological intercontinental spreads among AAvV‐6 transmission by wild migratory birds, and reveal potential threats to wild birds and domestic poultry worldwide.
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Affiliation(s)
- Yanyu Chen
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhuang Ding
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xinxin Liu
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Jianjun Chen
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Hubei, China
| | - Junjiao Li
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yidong Fei
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhe Liu
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Tobias Stoeger
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease (iLBD), Helmholtz Zentrum Muenchen, Munich, Germany
| | - Yuhai Bi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Renfu Yin
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
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Metagenomics detection and characterisation of viruses in faecal samples from Australian wild birds. Sci Rep 2018; 8:8686. [PMID: 29875375 PMCID: PMC5989203 DOI: 10.1038/s41598-018-26851-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/17/2018] [Indexed: 01/19/2023] Open
Abstract
We present an optimised metagenomics method for detection and characterisation of all virus types including single and double stranded DNA/RNA and enveloped and non-enveloped viruses. Initial evaluation included both spiked and non-spiked bird faecal samples as well as non-spiked human faecal samples. From the non-spiked bird samples (Australian Muscovy duck and Pacific black ducks) we detected 21 viruses, and we also present a summary of a few viruses detected in human faecal samples. We then present a detailed analysis of selected virus sequences in the avian samples that were somewhat similar to known viruses, and had good quality (Q20 or higher) and quantity of next-generation sequencing reads, and was of interest from a virological point of view, for example, avian coronavirus and avian paramyxovirus 6. Some of these viruses were closely related to known viruses while others were more distantly related with 70% or less identity to currently known/sequenced viruses. Besides detecting viruses, the technique also allowed the characterisation of host mitochondrial DNA present and thus identifying host species, while ribosomal RNA sequences provided insight into the "ribosomal activity microbiome"; of gut parasites; and of food eaten such as plants or insects, which we correlated to non-avian host associated viruses.
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6
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Genetic Diversity of Avian Paramyxovirus Type 6 Isolated from Wild Ducks in the Republic of Korea. J Wildl Dis 2018. [PMID: 29517403 DOI: 10.7589/2017-07-158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Eleven avian paramyxovirus type 6 (APMV-6) isolates from Eurasian Wigeon ( n=5; Anas penelope), Mallards ( n=2; Anas platyrhynchos), and unknown species of wild ducks ( n=4) from Korea were analyzed based on the nucleotide (nt) and deduced amino acid sequences of the fusion (F) gene. Fecal samples were collected in 2010-14. Genotypes were assigned based on phylogenetic analyses. Our results revealed that APMV-6 could be classified into at least two distinct genotypes, G1 and G2. The open reading frame (ORF) of the G1 genotype was 1,668 nt in length, and the putative F0 cleavage site sequence was 113PAPEPRL119. The G2 genotype viruses included five isolates from Eurasian wigeons and four isolates from unknown waterfowl species, together with two reference APMV-6 strains from the Red-necked Stint ( Calidris ruficollis) from Japan and an unknown duck from Italy. There was an N-truncated ORF (1,638 nt), due to an N-terminal truncation of 30 nt in the signal peptide region of the F gene, and the putative F0 cleavage site sequence was 103SIREPRL109. The genetic diversity and ecology of APMV-6 are discussed.
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7
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The complete mitochondrial genome of the red-necked stint Calidris ruficollis (Charadriiformes, Scolopacidae). CONSERV GENET RESOUR 2018. [DOI: 10.1007/s12686-018-0996-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Bui VN, Trinh DQ, Abao LNB, Ozeki Y, Runstadler J, Nakamura K, Ogawa H, Imai K. Evaluation of the replication and pathogenicity of a variant avian paramyxovirus serotype 6 in mice. Arch Virol 2017; 162:3035-3043. [PMID: 28685285 DOI: 10.1007/s00705-017-3459-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 04/26/2017] [Indexed: 01/30/2023]
Abstract
Avian paramyxoviruses (APMVs) have been evaluated for their potential use as vaccine vectors, sparking research efforts leading to a better understanding of APMVs' replication and pathogenicity. However, within APMV serotypes, significant genetic diversity exists, and the infectivity of variant strains in mammals has not been studied. We utilized a mouse model to evaluate the pathogenicity of a variant strain of APMV-6 (APMV-6/red-necked stint/Japan/8KS0813/2008) in comparison with the prototype APMV-6 strain (APMV-6/duck/Hong Kong/18/199/1977). Although the two viruses differ substantially, both genetically and antigenically, we found that the variant and prototype strains could similarly replicate in respiratory tissues of infected mice and induce respiratory disease, sometimes resulting in death of the mice. Both viruses induced a humoral immune response that could be clearly detected by ELISA but which was poorly recognized by the hemagglutination inhibition test.
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Affiliation(s)
- Vuong Nghia Bui
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan.,National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Dai Quang Trinh
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan.,National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Lary N B Abao
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan.,Department of Agriculture-Agribusiness and Marketing Assistance Service, 1101, Quezon City, Philippines
| | - Yuki Ozeki
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
| | | | - Kikuyasu Nakamura
- National Institute of Animal Health, Tsukuba, Ibaraki, 305-0856, Japan
| | - Haruko Ogawa
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan.
| | - Kunitoshi Imai
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
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9
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Thampaisarn R, Bui VN, Trinh DQ, Nagai M, Mizutani T, Omatsu T, Katayama Y, Gronsang D, Le DHT, Ogawa H, Imai K. Characterization of avian paramyxovirus serotype 14, a novel serotype, isolated from a duck fecal sample in Japan. Virus Res 2016; 228:46-57. [PMID: 27884627 DOI: 10.1016/j.virusres.2016.11.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/14/2016] [Accepted: 11/14/2016] [Indexed: 01/11/2023]
Abstract
A hemagglutinating virus isolate designated 11OG0352, was obtained from a duck fecal sample. Genetic and virological analyses indicated that it might represent a novel serotype of avian paramyxovirus (APMV). Electron micrographs showed that the morphology of the virus particle was similar to that of APMV. The complete genome of this virus comprised 15,444 nucleotides complying with the paramyxovirus "rule of six" and contains six open reading frames (3'-N-P-M-F-HN-L-5'). The phylogenetic analysis of the whole genome revealed that the virus was a member of the genus Avulavirus, but that it was distinct from APMV-1 to APMV-13. Although the F-protein cleavage site was TREGK↓L, which resembles a lentogenic strain of APMV-1, the K residue at position -1 of the cleavage site was first discovered in APMV members. The phosphoprotein gene of isolate 11OG0352 contains a putative RNA editing site, 3'-AUUUUCCC-5' (negative sense) which sequence differs from that of other APMVs. The intracerebral pathogenicity index test did not detect virulence in infected chicks. In hemagglutination inhibition (HI) tests, an antiserum against this virus did not detectably react with other APMVs (serotypes 1-4, 6-9) except for low reciprocal cross-reactivity with APMV-6. We designated this isolate, as APMV-14/duck/Japan/11OG0352/2011 and propose that it is a novel APMV serotype. The HI test may not be widely applicable for the classification of a new serotype because of the limited availability of reference antisera against all serotypes and cross-reactivity data. The nucleotide sequence identities of the whole genome of 11OG0352 and other APMVs ranged from 46.3% to 56.1%. Such comparison may provide a useful tool for classifying new APMV isolates. However, the nucleotide sequence identity between APMV-12 and APMV-13 was higher (64%), which was nearly identical to the lowest nucleotide identity (67%) reported in subgroups within the serotype. Therefore, consensus criteria for using whole genome analysis should be established.
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Affiliation(s)
- Rapeewan Thampaisarn
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan; Faculty of Veterinary Science, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Vuong N Bui
- National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Viet Nam
| | - Dai Q Trinh
- National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Viet Nam
| | - Makoto Nagai
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Tsutomu Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Yukie Katayama
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Dulyatad Gronsang
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan; Faculty of Veterinary Science, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Duong H T Le
- Pasteur Institute of Ho Chi Minh City, 167 Pasteur, District 3, Ho Chi Minh City, Viet Nam
| | - Haruko Ogawa
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Kunitoshi Imai
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
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Characterization of avian paramyxovirus type 6 isolated from a Eurasian teal in the intersection of migratory flyways in Russia. Arch Virol 2016; 161:3275-9. [PMID: 27573675 PMCID: PMC7086963 DOI: 10.1007/s00705-016-3029-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 08/22/2016] [Indexed: 12/02/2022]
Abstract
The complete genome sequence was determined for avian paramyxovirus (APMV-6) serotype 6 strain teal/Chany/455/2009, isolated from a teal (Anas crecca) in Siberia. Siberia is crossed by four major migration flyways and represents the major breeding area for many wild bird species in the Palearctic. Strain teal/Chany/455/2009 is genetically closely related to Kazakh and Chinese strains and belongs to the genetic group of duck/Hong Kong/18/199/77-like APMV-6 viruses. We show that the virus has low pathogenic potential according to genetic markers and animal model experiments.
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Yamamoto E, Ito T, Ito H. Completion of full length genome sequence of novel avian paramyxovirus strain APMV/Shimane67 isolated from migratory wild geese in Japan. J Vet Med Sci 2016; 78:1583-1594. [PMID: 27430258 PMCID: PMC5095628 DOI: 10.1292/jvms.16-0264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The nucleotide sequences of nucleocapsid protein (N); phosphoprotein (P); matrix protein (M); hemagglutinin-neuraminidase (HN); and large polymerase protein (L) genes, 3'-end leader, 5'-end trailer and intergenic regions of the avian paramyxovirus (APMV) strain goose/Shimane/67/2000 (APMV/Shimane67) were determined. Together with previously reported data on fusion protein (F) gene sequence [46], the determination of the genome sequence of APMV/Shimane67 has been completed in this study. The genome of APMV/Shimane67 comprised 16,146 nucleotides in length and contains six genes in the order of 3'-N-P-M-F-HN-L-5'. The features of the APMV/Shimane67 genome (e.g., nucleotide length of whole genome and each of the six genes, and predicted amino acid length of each of the six genes) were distinct from those of other APMV serotypes. Phylogenetic analysis indicated that although APMV/Shimane67 was grouped with APMV-1, -9 and -12, the evolutionary distance between APMV/Shimane67 and these viruses was longer than that observed between intra-serotype viruses. These results show that the genome sequence of APMV/Shimane67 contains specific characteristics and is distinguishable from other types of APMV.
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Affiliation(s)
- Eiji Yamamoto
- United Graduate School of Veterinary Sciences, Yamaguchi University, Yamaguchi 753-8515, Japan
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