1
|
Dankaona W, Nooroong P, Poolsawat N, Piewbang C, Techangamsuwan S, Anuracpreeda P. Recombinant expression and characterization of Canine circovirus capsid protein for diagnosis. Front Vet Sci 2024; 11:1363524. [PMID: 38659451 PMCID: PMC11040689 DOI: 10.3389/fvets.2024.1363524] [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: 12/30/2023] [Accepted: 03/22/2024] [Indexed: 04/26/2024] Open
Abstract
Canine circovirus (CanineCV) is a contagious virus that causes severe gastroenteritis, diarrhea, respiratory disease, and vasculitis, often resulting in fatality among infected dogs. In this study, a recombinant Capsid protein (rCap) of CanineCV was expressed in the Escherichia coli (E. coli) Rosetta (DE3) pLysS host cell, followed by affinity purification, and then analyzed by SDS-PAGE, revealing a molecular weight of approximately 31 kDa. The antigenicity of the CanineCV rCap protein was confirmed through recognition by a rabbit anti-CanineCV rCap protein polyclonal antibody (PoAb). Additionally, the reactivity and specificity of this PoAb were assessed using indirect enzyme-linked immunosorbent assay (ELISA) and Western blot analysis before applying in an immunohistochemistry (IHC), namely, immunoperoxidase detection. The immunoperoxidase assay using rabbit anti-CanineCV rCap protein PoAb demonstrated that the CanineCV Cap protein was predominantly located in immune cells, especially lymphocytes and macrophages, within the spleen, lung, tracheobronchial lymph nodes, small intestine, and kidney. Similarly, the Cap protein was also found in pneumocytes in the lung and renal tubular epithelial cells in the kidney. These findings reflected the biological activity and cell tropism of the virus. Therefore, the recombinant Cap protein and its PoAb could be used for the development of a valuable diagnostic tool for CanineCV detection.
Collapse
Affiliation(s)
- Wichan Dankaona
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Animal Virome and Diagnostic Development Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Parasitology Research Laboratory (PRL), Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Pornpiroon Nooroong
- Parasitology Research Laboratory (PRL), Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Napassorn Poolsawat
- Parasitology Research Laboratory (PRL), Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Chutchai Piewbang
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Animal Virome and Diagnostic Development Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Somporn Techangamsuwan
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Animal Virome and Diagnostic Development Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Panat Anuracpreeda
- Parasitology Research Laboratory (PRL), Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| |
Collapse
|
2
|
Neef A, Nath BK, Das T, Luque D, Forwood JK, Raidal SR, Das S. Recombinantly expressed virus-like particles (VLPs) of canine circovirus for development of an indirect ELISA. Vet Res Commun 2024; 48:1121-1133. [PMID: 38163840 DOI: 10.1007/s11259-023-10290-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Canine circovirus (CanineCV) is an emerging pathogen in domestic dogs, detected in multiple countries in association with varying clinical and pathological presentations including diarrhoea, vasculitis, granulomatous inflammation, and respiratory signs. Understanding the pathology of CanineCV is confounded by the fact that it has been detected in asymptomatic dogs as well as in diseased dogs concurrently infected with known pathogens. Recombinantly expressed self-assembling Virus-like particles (VLPs) lack viral genomic material but imitate the capsid surface conformations of wild type virion, allowing arrays of biological applications including subunit vaccine development and immunodiagnostics. In this study, full length CanineCV capsid gene was expressed in Escherichia coli followed by two-step purification process to yield soluble capsid protein in high concentration. Transmission electron microscopy (TEM) confirmed the capsid antigen self-assembled into 17-20 nm VLPs in glutathione S-transferase (GST) buffer, later utilised to develop an indirect enzyme-linked immunosorbent assay (iELISA). The respective sensitivity and specificity of the proposed iELISA were 94.10% and 88.40% compared with those obtained from Western blot. The mean OD450 value for western blot positive samples was 1.22 (range 0.12-3.39) and negative samples was 0.21 (range 0.07-0.41). An optimal OD450 cut-off of 0.35 was determined by ROC curve analysis. Median inter-assay and intra-assay validation revealed that the iELISA test results were reproducible with coefficients of variation 7.70 (range 5.6-11.9) and 4.21 (range 1.2-7.4). Our results demonstrated that VLP-based iELISA is a highly sensitive method for serological diagnosis of CanineCV infections in dogs, suitable for large-scale epidemiological studies.
Collapse
Affiliation(s)
- Alison Neef
- School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
| | - Babu Kanti Nath
- Biosecurity Research Program and Training Centre, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia.
| | - Tridip Das
- School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
| | - Daniel Luque
- Electron Microscope Unit, Mark Wainwright Analytical Centre, School of Biomedical Sciences, University of New South Wales, Sydney, 2052, Australia
| | - Jade K Forwood
- Biosecurity Research Program and Training Centre, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
- School of Dentistry and Medical Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
- Training Hub Promoting Regional Industry and Innovation in Virology and Epidemiology, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
| | - Shane R Raidal
- School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
- Training Hub Promoting Regional Industry and Innovation in Virology and Epidemiology, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
| | - Shubhagata Das
- School of Agricultural, Environmental and Veterinary Sciences, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
- Training Hub Promoting Regional Industry and Innovation in Virology and Epidemiology, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
| |
Collapse
|
3
|
Gomez-Betancur D, Vargas-Bermudez DS, Giraldo-Ramírez S, Jaime J, Ruiz-Saenz J. Canine circovirus: An emerging or an endemic undiagnosed enteritis virus? Front Vet Sci 2023; 10:1150636. [PMID: 37138920 PMCID: PMC10150634 DOI: 10.3389/fvets.2023.1150636] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/28/2023] [Indexed: 05/05/2023] Open
Abstract
Canine Circovirus (CanineCV) belongs to the family Circoviridae. It is an emerging virus described for the first time in 2011; since then, it has been detected in different countries and can be defined as worldwide distribution virus. CanineCV infects domestic and wild canids and is mainly related to hemorrhagic enteritis in canines. However, it has been identified in fecal samples from apparently healthy animals, where in most cases it is found in coinfection with other viral agents such as the canine parvovirus type-2 (CPV). The estimated prevalence/frequency of CanineCV has been variable in the populations and countries where it has been evaluated, reaching from 1 to 30%, and there are still many concepts to define the epidemiological characteristics of the virus. The molecular characterization and phylo-evolutive analyses that allow to postulate the wild origin and intercontinental distribution of the virus. This review focuses on the importance on continuing research and establish surveillance systems for this emerging virus.
Collapse
Affiliation(s)
- Diana Gomez-Betancur
- Grupo de Investigación en Ciencias Animales—GRICA, Facultad de Medicina Veterinaria y Zootecnia, Universidad Cooperativa de Colombia, Bucaramanga, Colombia
| | - Diana S. Vargas-Bermudez
- Universidad Nacional de Colombia, Facultad de Medicina Veterinaria y de Zootecnia, Centro de investigación en Infectología e Inmunología Veterinaria (CI3V), Sede Bogotá, Bogotá, Colombia
| | - Sebastian Giraldo-Ramírez
- Facultad de Medicina Veterinaria y Zootecnia, Fundación Universitaria Autónoma de las Américas, Medellín, Colombia
| | - Jairo Jaime
- Universidad Nacional de Colombia, Facultad de Medicina Veterinaria y de Zootecnia, Centro de investigación en Infectología e Inmunología Veterinaria (CI3V), Sede Bogotá, Bogotá, Colombia
| | - Julian Ruiz-Saenz
- Grupo de Investigación en Ciencias Animales—GRICA, Facultad de Medicina Veterinaria y Zootecnia, Universidad Cooperativa de Colombia, Bucaramanga, Colombia
- *Correspondence: Julian Ruiz-Saenz,
| |
Collapse
|
4
|
Epidemiology, genetic diversity, and association of canine circovirus infection in dogs with respiratory disease. Sci Rep 2022; 12:15445. [PMID: 36104425 PMCID: PMC9472715 DOI: 10.1038/s41598-022-19815-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 09/05/2022] [Indexed: 11/08/2022] Open
Abstract
AbstractAlthough canine circovirus (CanineCV)-associated with gastroenteritis has been well documented, the virus is also detectable in the respiratory discharge of dogs with respiratory disease. In this study, an epidemiological approach was used to explore the association between the presence of CanineCV and respiratory symptoms in dogs. Respiratory swabs were collected from 76 healthy dogs and 114 dogs with respiratory illness and tested for CanineCV using conventional PCR (cPCR). Furthermore, lung tissues collected from 15 necropsied dogs showing pneumonia were tested using the real-time PCR (qPCR) and in situ hybridization (ISH) technique. A total of 8.95% (17/190) of dogs were CanineCV positive, with a significant association (p = 0.013) in dogs with respiratory signs. Four necropsied dogs were qPCR positive with the CanineCV-DNA labeling localized in tracheobronchial lymphoid cells (3/4), pulmonary parenchyma, capillary endothelia, and mononuclear cells harboring in alveoli (2/4). Full-length genome sequences of seven CanineCV strains were analyzed, indicating that the detected CanineCV genome clustered in the CanineCV-4 genotype. Genetic recombination was also evident in the replicase (Rep) gene. Although the role of CanineCV primarily affecting lung lesions could not be determined from this study, the presence of CanineCV DNA in pulmonary-associated cells indicated the potential association of the virus with canine respiratory disease; thus, linking causality must be examined in further studies.
Collapse
|
5
|
Hao X, Li Y, Chen H, Chen B, Liu R, Wu Y, Xiao X, Zhou P, Li S. Canine Circovirus Suppresses the Type I Interferon Response and Protein Expression but Promotes CPV-2 Replication. Int J Mol Sci 2022; 23:ijms23126382. [PMID: 35742826 PMCID: PMC9224199 DOI: 10.3390/ijms23126382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 12/24/2022] Open
Abstract
Canine circovirus (CanineCV) is an emerging virus in canines. Since the first strain of CanineCV was reported in 2012, CanineCV infection has shown a trend toward becoming a global epidemic. CanineCV infection often occurs with coinfection with other pathogens that may aggravate the symptoms of disease in affected dogs. Currently, CanineCV has not been successfully isolated by laboratories, resulting in a lack of clarity regarding its physicochemical properties, replication process, and pathogenic characteristics. To address this knowledge gap, the following results were obtained in this study. First, a CanineCV strain was rescued in F81 cells using infectious clone plasmids. Second, the Rep protein produced by the viral packaging rescue process was found to be associated with cytopathic effects. Additionally, the Rep protein and CanineCV inhibited the activation of the type I interferon (IFN-I) promoter, blocking subsequent expression of interferon-stimulated genes (ISGs). Furthermore, Rep was found to broadly inhibit host protein expression. We speculate that in CanineCV and canine parvovirus type 2 (CPV-2) coinfection cases, CanineCV promotes CPV-2 replication by inducing immunosuppression, which may increase the severity of clinical symptoms.
Collapse
Affiliation(s)
- Xiangqi Hao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Yanchao Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Hui Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Bo Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Ruohan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Yidan Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Xiangyu Xiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Pei Zhou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
- Correspondence: (P.Z.); (S.L.)
| | - Shoujun Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
- Correspondence: (P.Z.); (S.L.)
| |
Collapse
|
6
|
Hao X, Li Y, Hu X, Fu X, Dong J, Zhang H, Zhou P, Li S. Feline Stool-Associated Circular DNA Virus (FeSCV) in Diarrheic Cats in China. Front Vet Sci 2021; 8:694089. [PMID: 34222407 PMCID: PMC8242157 DOI: 10.3389/fvets.2021.694089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
Feline stool-associated circular DNA virus (FeSCV) is an unclassified circular replication-associated protein-encoding single-stranded (CRESS) DNA virus that was discovered in cats in Japan in 2018. Few studies on the genomic characteristics and prevalence of FeSCV have been conducted. To investigate whether FeSCV has been circulating in domestic cats in Guangdong, China, fecal samples were collected from cats with diarrhea in an animal hospital in 2018 to promote research on FeSCV. The FeSCV genome was obtained by PCR amplification and sequencing, and the detected virus was named PY4 (GenBank No. MT732515). The genome of PY4 was 2,034 nt in size, which was 12 nt smaller than the reported genome of Japanese FeSCV strains (KU7, KU8, KU9, KU14) (2,046 nt). The PY4 strain shared 95.1 ~ 95.5% homology with Japanese FeSCV strains. Notably, the Cap protein of PY4 was mutated at 15 amino acid sites, and the PY4 genome contained a unique open reading frame 3. In addition, there were two additional base insertions in the stem-loop structure of PY4, and the nucleotide homology of the spacer region was not high. A phylogenetic tree based on Rep proteins showed that PY4, Japanese FeSCVs and rodent stool-associated circular viruses (RodSCVs) clustered together, suggesting that they might share a similar origin in their phylogenetic evolution. In this study, samples collected in Guangzhou, China, in 2018 were subjected to an etiological investigation, and 20% (2/10) of the samples were positive for FeSCV. The ORFs, stem-loop structures, Cap proteins and intergenic region sequences of PY4 were significantly different from those reported in Japan. This is the first report of FeSCV in domestic cats with diarrhea in China, and further epidemiological studies are urgently needed to assess the impact of the virus on cats.
Collapse
Affiliation(s)
- Xiangqi Hao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Yanchao Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Xinkai Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Xueying Fu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Jie Dong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Haoyang Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Pei Zhou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| | - Shoujun Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou, China.,Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou, China
| |
Collapse
|
7
|
Wang L, Li Y, Guo Z, Yi Y, Zhang H, Shangguan H, Huang C, Ge J. Genetic changes and evolutionary analysis of canine circovirus. Arch Virol 2021; 166:2235-2247. [PMID: 34104994 DOI: 10.1007/s00705-021-05125-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/15/2021] [Indexed: 11/28/2022]
Abstract
Canine circovirus (canineCV) has been found to be associated with vasculitis, hemorrhage, hemorrhagic enteritis, and diarrhea of canines. CanineCV, like other circoviruses, may also be associated with lymphoid depletion and immunosuppression. This circovirus has been detected worldwide in different countries and species. Recombination and mutation events in the canineCV genome have been described, indicating that the virus is continuing to evolve. However, the origin, codon usage patterns, and host adaptation of canineCV remain to be studied. Here, the coding sequences of 93 canineCV sequences available in the GenBank database were used for analysis. The results showed that canineCV sequences could be classified into five genotypes, as confirmed by phylogenetic and principal component analysis (PCA). Maximum clade credibility (MCC) and maximum-likelihood (ML) trees suggested that canineCV originated from bat circovirus. G/T and A/C nucleotide biases were observed in ORF1 and ORF2, respectively, and a low codon usage bias (CUB) was found in canineCV using an effective number of codon (ENC) analysis. Correlation analysis, ENC plot analysis and neutrality plot analysis indicated that the codon usage pattern was mainly shaped by natural selection. Codon adaptation index (CAI) analysis, relative codon deoptimization index (RCDI) analysis, and similarity index (SiD) analysis revealed a better adaption to Vulpes vulpes than to Canis familiaris. Furthermore, a cross-species transmission hypothesis that canineCV may have evolved from bats (origin analysis) and subsequently adapted to wolves, arctic foxes, dogs, and red foxes, was proposed. This study contributes to our understanding of the factors related to canineCV evolution and host adaption.
Collapse
Affiliation(s)
- Lin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Yifan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Zhiyuan Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Ying Yi
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Han Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Haikun Shangguan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Chengshi Huang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Junwei Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China. .,Northeastern Science Inspection Station, China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Harbin, 150030, China.
| |
Collapse
|