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Dharmayanti NI, Nurjanah D, Nuradji H, Suyatno T, Indriani R. Newcastle disease virus: the past and current situation in Indonesia. J Vet Sci 2024; 25:e3. [PMID: 38311318 PMCID: PMC10839176 DOI: 10.4142/jvs.23022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 07/25/2023] [Accepted: 07/29/2023] [Indexed: 02/07/2024] Open
Abstract
The Newcastle disease virus (NDV) outbreak was first reported in Java Island, Indonesia, in 1926, which was then reported further in Newcastle-upon-Tyne, England. Nevertheless, the NDV is still endemic in Indonesia, with outbreaks occurring in free-range and commercial chicken farms. The dynamic evolution of the NDV has led to the further development of vaccines and diagnostic tools for more effective control of this virus. This paper discusses the history of the NDV occurrence, vaccines, the development of diagnostic tools, and the epidemiological condition of the NDV in Indonesia. Indonesia, which has the largest poultry population in the world after China, has challenges in preventing and controlling this virus that causes economic losses to the farmers and has an impact on the welfare of the poultry farming community in Indonesia.
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Affiliation(s)
- Nlp Indi Dharmayanti
- Research Organization for Health, National Research and Innovation Agency, Cibinong 16911, Indonesia
| | - Diana Nurjanah
- Research Center for Veterinary Science, Research Organization for Health, National Research and Innovation Agency, Cibinong 16911, Indonesia
- Master's Programme in Biomedical Sciences Faculty of Medicine Universitas Indonesia, Depok 16424, Indonesia.
| | - Harimurti Nuradji
- Research Center for Veterinary Science, Research Organization for Health, National Research and Innovation Agency, Cibinong 16911, Indonesia
| | - Teguh Suyatno
- Research Center for Veterinary Science, Research Organization for Health, National Research and Innovation Agency, Cibinong 16911, Indonesia
| | - Risa Indriani
- Research Center for Veterinary Science, Research Organization for Health, National Research and Innovation Agency, Cibinong 16911, Indonesia
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Cheng H, Zhang H, Cai H, Liu M, Wen S, Ren J. Molecular biology of canine parainfluenza virus V protein and its potential applications in tumor immunotherapy. Front Microbiol 2023; 14:1282112. [PMID: 38173672 PMCID: PMC10761501 DOI: 10.3389/fmicb.2023.1282112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024] Open
Abstract
Canine parainfluenza virus (CPIV) is a zoonotic virus that is widely distributed and is the main pathogen causing canine infectious respiratory disease (CIRD), also known as "kennel cough," in dogs. The CPIV-V protein is the only nonstructural protein of the virus and plays an important role in multiple stages of the virus life cycle by inhibiting apoptosis, altering the host cell cycle and interfering with the interferon response. In addition, studies have shown that the V protein has potential applications in the field of immunotherapy in oncolytic virus therapy or self-amplifying RNA vaccines. In this review, the biosynthesis, structural characteristics and functions of the CPIV-V protein are reviewed with an emphasis on how it facilitates viral immune escape and its potential applications in the field of immunotherapy. Therefore, this review provides a scientific basis for research into the CPIV-V protein and its potential applications.
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Affiliation(s)
- Huai Cheng
- Wenzhou Key Laboratory for Virology and Immunology, Institute of Virology, Wenzhou University, Wenzhou, China
| | - Hewei Zhang
- College of Food and Drugs, Luoyang Polytechnic, Luoyang, China
- Animal Diseases and Public Health Engineering Research Center of Henan Province, Luoyang, China
| | - Huanchang Cai
- Wenzhou Key Laboratory for Virology and Immunology, Institute of Virology, Wenzhou University, Wenzhou, China
| | - Min Liu
- Wenzhou Key Laboratory for Virology and Immunology, Institute of Virology, Wenzhou University, Wenzhou, China
| | - Shubo Wen
- Preventive Veterinary Laboratory, College of Animal Science and Technology, Inner Mongolia Minzu University, Tongliao, China
| | - Jingqiang Ren
- Wenzhou Key Laboratory for Virology and Immunology, Institute of Virology, Wenzhou University, Wenzhou, China
- Animal Diseases and Public Health Engineering Research Center of Henan Province, Luoyang, China
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Stevens CS, Lowry J, Juelich T, Atkins C, Johnson K, Smith JK, Panis M, Ikegami T, tenOever B, Freiberg AN, Lee B. Nipah Virus Bangladesh Infection Elicits Organ-Specific Innate and Inflammatory Responses in the Marmoset Model. J Infect Dis 2023; 228:604-614. [PMID: 36869692 PMCID: PMC10469344 DOI: 10.1093/infdis/jiad053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/03/2023] [Accepted: 02/28/2023] [Indexed: 03/05/2023] Open
Abstract
The common marmoset (Callithrix jacchus) is increasingly recognized as an ideal nonhuman primate (NHP) at high biocontainment due to its smaller size and relative ease of handling. Here, we evaluated the susceptibility and pathogenesis of Nipah virus Bangladesh strain (NiVB) infection in marmosets at biosafety level 4. Infection via the intranasal and intratracheal route resulted in fatal disease in all 4 infected marmosets. Three developed pulmonary edema and hemorrhage as well as multifocal hemorrhagic lymphadenopathy, while 1 recapitulated neurologic clinical manifestations and cardiomyopathy on gross pathology. Organ-specific innate and inflammatory responses were characterized by RNA sequencing in 6 different tissues from infected and control marmosets. Notably, a unique transcriptome was revealed in the brainstem of the marmoset exhibiting neurological signs. Our results provide a more comprehensive understanding of NiV pathogenesis in an accessible and novel NHP model, closely reflecting clinical disease as observed in NiV patients.
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Affiliation(s)
- Christian S Stevens
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jake Lowry
- Animal Resource Center, University of Texas Medical Branch, Galveston, Texas, USA
| | - Terry Juelich
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Colm Atkins
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Kendra Johnson
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Jennifer K Smith
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Maryline Panis
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Microbiology, New York University, New York, New YorkUSA
| | - Tetsuro Ikegami
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Benjamin tenOever
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Microbiology, New York University, New York, New YorkUSA
| | - Alexander N Freiberg
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Benhur Lee
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Nayak BN, Rajagopal K, Shunmugasundaram R, Rao PL, Vaidyanathan S, Subbiah M. Molecular characterization suggests kinetic modulation of expression of accessory viral protein, W, in Newcastle disease virus infected DF1 cells. Virusdisease 2023; 34:236-247. [PMID: 37408548 PMCID: PMC10317930 DOI: 10.1007/s13337-023-00813-2] [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: 10/11/2022] [Accepted: 03/01/2023] [Indexed: 07/07/2023] Open
Abstract
Viruses adopt strategies to efficiently utilize their compact genome. Members of the family Paramyxoviridae, exhibit a cotranscriptional RNA editing mechanism wherein polymerase stuttering generates accessory proteins from Phosphoprotein (P) gene. Newcastle disease virus (NDV), an avian paramyxovirus, expresses two accessory proteins, V and W, by RNA editing. While P and V proteins are well studied, very little is known about W protein. Recent studies confirmed W protein expression in NDV and the unique subcellular localization of W proteins of virulent and avirulent NDV. We characterized the W protein of NDV strain Komarov, a moderately virulent vaccine strain. W mRNA expression ranged between 7 and 9% of total P gene transcripts similar to virulent NDV. However, W protein expression, detectable by 6 h, peaked at 24 h and dropped by 48 h post infection in DF1 cells indicating a kinetically regulated expression by the virus. The W protein localized in the nucleus and by mutations, a strong nuclear localization signal was identified in the C-terminal region of W protein. The viral growth kinetics study suggested neither supplementation of W protein nor subcellular localization pattern of the supplemented W protein influenced viral replication in vitro similar to that noticed in avirulent NDV. A cytoplasmic mutant of W protein localized in cytoplasm unlike specific mitochondrial colocalization as recorded in velogenic NDV strain SG10 indicating a possible role of W protein in determining the viral pathogenicity. This study describes for the first time, the distinct features of W protein of moderately virulent NDV. Supplementary Information The online version contains supplementary material available at 10.1007/s13337-023-00813-2.
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Affiliation(s)
- B. Nagaraj Nayak
- National Institute of Animal Biotechnology, Hyderabad, Telangana India
- Regional Centre for Biotechnology, New Delhi, India
| | | | | | | | | | - Madhuri Subbiah
- National Institute of Animal Biotechnology, Hyderabad, Telangana India
- Regional Centre for Biotechnology, New Delhi, India
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Zhigailov AV, Maltseva ER, Perfilyeva YV, Ostapchuk YO, Naizabayeva DA, Berdygulova ZA, Kuatbekova SA, Nizkorodova AS, Mashzhan A, Gavrilov AE, Abayev AZ, Akhmetollayev IA, Mamadaliyev SM, Skiba YA. Prevalence and genetic diversity of coronaviruses, astroviruses and paramyxoviruses in wild birds in southeastern Kazakhstan. Heliyon 2022; 8:e11324. [PMID: 36353173 PMCID: PMC9638769 DOI: 10.1016/j.heliyon.2022.e11324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 06/21/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
Wild birds are natural reservoirs of many emerging viruses, including some zoonoses. Considering that the territory of Kazakhstan is crossed by several bird migration routes, it is important to know pathogenic viruses circulating in migratory birds in this region. Therefore, the aim of this study was to identify the host range, diversity and spatial distribution of avian paramyxoviruses, coronaviruses, and astroviruses in free-ranging wild birds in the southeastern region of Kazakhstan. For this purpose, we collected tracheal and cloacal swabs from 242 wild birds belonging to 51 species and screened them using conventional PCR assays. Overall, 4.1% (10/242) and 2.9% (7/242) of all examined birds tested positive for coronaviruses and astroviruses, respectively. Coronaviruses were found in the orders Pelecaniformes (30%; 3/10), Charadriiformes (30%; 3/10), Columbiformes (20%; 2/10), Anseriformes (10%; 1/10), and Passeriformes (10%; 1/10). All detected strains belonged to the genus Gammacoronavirus. Astroviruses were detected in birds representing the orders Passeriformes (57%; 4/7), Coraciiformes (14%; 1/7), Charadriiformes (14%; 1/7), and Columbiformes (14%; 1/7). Paramyxoviruses were observed in only two birds (0.8%; 2/242). Both strains were closely related to the species APMV-22, which had not been previously detected in Kazakhstan. Phylogenetic analysis of the partial RdRp gene sequences of the virus strains revealed three different clades of astroviruses, two clades of coronaviruses, and one clade of paramyxoviruses. The results of this study provide valuable information on the diversity and spatial distribution of paramyxoviruses, coronaviruses, and astroviruses in wild birds in southeastern Kazakhstan and highlight the importance of further thorough monitoring of wild birds in this region. First study on CoVs and AstroVs in wild birds in Kazakhstan. APMVs, CoVs and AstroVs are confirmed by RT-PCR and partial RdRp gene sequencing. The CoVs prevalence is higher in aquatic birds as compared to terrestrial species. The obtained CoV strains belong to the genus Gammacoronavirus Strains closely related to APMV-22 not previously detected in Kazakhstan are shown.
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Affiliation(s)
- Andrey V. Zhigailov
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
| | - Elina R. Maltseva
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
- Tethys Scientific Society, Almaty, Kazakhstan
| | - Yuliya V. Perfilyeva
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
- Corresponding author.
| | - Yekaterina O. Ostapchuk
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
| | - Dinara A. Naizabayeva
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | | | | | - Anna S. Nizkorodova
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
| | - Akzhigit Mashzhan
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | | | | | | | | | - Yuriy A. Skiba
- Almaty Branch of the National Center for Biotechnology, Almaty, Kazakhstan
- M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
- Tethys Scientific Society, Almaty, Kazakhstan
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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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Genetic and Antigenic Characterization of Avian Avulavirus Type 6 (AAvV-6) Circulating in Canadian Wild Birds (2005-2017). Viruses 2021; 13:v13040543. [PMID: 33805157 PMCID: PMC8064105 DOI: 10.3390/v13040543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022] Open
Abstract
We describe for the first time the genetic and antigenic characterization of 18 avian avulavirus type-6 viruses (AAvV-6) that were isolated from wild waterfowl in the Americas over the span of 12 years. Only one of the AAvV-6 viruses isolated failed to hemagglutinate chicken red blood cells. We were able to obtain full genome sequences of 16 and 2 fusion gene sequences from the remaining 2 isolates. This is more than double the number of full genome sequences available at the NCBI database. These AAvV-6 viruses phylogenetically grouped into the 2 existing AAvV-6 genotype subgroups indicating the existence of an intercontinental epidemiological link with other AAvV-6 viruses isolated from migratory waterfowl from different Eurasian countries. Antigenic maps made using HI assay data for these isolates showed that the two genetic groups were also antigenically distinct. An isolate representing each genotype was inoculated in specific pathogen free (SPF) chickens, however, no clinical symptoms were observed. A duplex fusion gene based real-time assay for the detection and genotyping of AAvV-6 to genotype 1 and 2 was developed. Using the developed assay, the viral shedding pattern in the infected chickens was examined. The chickens infected with both genotypes were able to shed the virus orally for about a week, however, no significant cloacal shedding was detected in chickens of both groups. Chickens in both groups developed detectable levels of anti-hemagglutinin antibodies 7 days after infection.
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Virulence during Newcastle Disease Viruses Cross Species Adaptation. Viruses 2021; 13:v13010110. [PMID: 33467506 PMCID: PMC7830468 DOI: 10.3390/v13010110] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 01/29/2023] Open
Abstract
The hypothesis that host adaptation in virulent Newcastle disease viruses (NDV) has been accompanied by virulence modulation is reviewed here. Historical records, experimental data, and phylogenetic analyses from available GenBank sequences suggest that currently circulating NDVs emerged in the 1920-1940's from low virulence viruses by mutation at the fusion protein cleavage site. These viruses later gave rise to multiple virulent genotypes by modulating virulence in opposite directions. Phylogenetic and pathotyping studies demonstrate that older virulent NDVs further evolved into chicken-adapted genotypes by increasing virulence (velogenic-viscerotropic pathotypes with intracerebral pathogenicity indexes [ICPIs] of 1.6 to 2), or into cormorant-adapted NDVs by moderating virulence (velogenic-neurotropic pathotypes with ICPIs of 1.4 to 1.6), or into pigeon-adapted viruses by further attenuating virulence (mesogenic pathotypes with ICPIs of 0.9 to 1.4). Pathogenesis and transmission experiments on adult chickens demonstrate that chicken-adapted velogenic-viscerotropic viruses are more capable of causing disease than older velogenic-neurotropic viruses. Currently circulating velogenic-viscerotropic viruses are also more capable of replicating and of being transmitted in naïve chickens than viruses from cormorants and pigeons. These evolutionary virulence changes are consistent with theories that predict that virulence may evolve in many directions in order to achieve maximum fitness, as determined by genetic and ecologic constraints.
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Jadhav A, Zhao L, Liu W, Ding C, Nair V, Ramos-Onsins SE, Ferretti L. Genomic Diversity and Evolution of Quasispecies in Newcastle Disease Virus Infections. Viruses 2020; 12:v12111305. [PMID: 33202558 PMCID: PMC7698180 DOI: 10.3390/v12111305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/31/2020] [Accepted: 11/06/2020] [Indexed: 12/19/2022] Open
Abstract
Newcastle disease virus (NDV) infections are well known to harbour quasispecies, due to the error-prone nature of the RNA polymerase. Quasispecies variants in the fusion cleavage site of the virus are known to significantly change its virulence. However, little is known about the genomic patterns of diversity and selection in NDV viral swarms. We analyse deep sequencing data from in vitro and in vivo NDV infections to uncover the genomic patterns of diversity and the signatures of selection within NDV swarms. Variants in viruses from in vitro samples are mostly localised in non-coding regions and 3′ and 5′ untranslated regions (3′UTRs or 5′UTRs), while in vivo samples contain an order of magnitude more variants. We find different patterns of genomic divergence and diversity among NDV genotypes, as well as differences in the genomic distribution of intra-host variants among in vitro and in vivo infections of the same strain. The frequency spectrum shows clear signatures of intra-host purifying selection in vivo on the matrix protein (M) coding gene and positive or diversifying selection on nucleocapsid (NP) and haemagglutinin-neuraminidase (HN). The comparison between within-host polymorphisms and phylogenetic divergence reveals complex patterns of selective pressure on the NDV genome at between- and within-host level. The M sequence is strongly constrained both between and within hosts, fusion protein (F) coding gene is under intra-host positive selection, and NP and HN show contrasting patterns: HN RNA sequence is positively selected between hosts while its protein sequence is positively selected within hosts, and NP is under intra-host positive selection at the RNA level and negative selection at the protein level.
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Affiliation(s)
- Archana Jadhav
- Viral Oncogenesis Group, The Pirbright Institute, Pirbright, Woking GU24 0NF, Surrey, UK; (A.J.); (V.N.)
| | - Lele Zhao
- Nuffield Department of Medicine, Li Ka Shing Centre for Health Information and Discovery, Big Data Institute, University of Oxford, Oxford OX3 7LF, UK;
| | - Weiwei Liu
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China; (W.L.); (C.D.)
| | - Chan Ding
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China; (W.L.); (C.D.)
| | - Venugopal Nair
- Viral Oncogenesis Group, The Pirbright Institute, Pirbright, Woking GU24 0NF, Surrey, UK; (A.J.); (V.N.)
- UK-China Centre of Excellence on Avian Disease Research, Pirbright, Woking GU24 0NF, Surrey, UK
| | - Sebastian E. Ramos-Onsins
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG) CSIC-IRTA-UAB-UB, 08193 Bellaterra, Spain
- Correspondence: (S.E.R.-O.); (L.F.)
| | - Luca Ferretti
- Nuffield Department of Medicine, Li Ka Shing Centre for Health Information and Discovery, Big Data Institute, University of Oxford, Oxford OX3 7LF, UK;
- Correspondence: (S.E.R.-O.); (L.F.)
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