Molecular Characterization of Avian Viral Pathogens
Summary
Molecular characterisation of avian viral pathogens encompasses the use of genomic, proteomic and structural analyses to unravel the genetic makeup, evolution and functional properties of viruses that infect birds. High-throughput sequencing and targeted amplification techniques have enabled comprehensive mapping of viral genomes, identification of recombination events and detection of key mutations in structural and non-structural proteins. Phylogenetic and phylogeographic approaches reveal patterns of viral spread between regions and host species, informing both biosecurity measures and vaccine strain selection. Studies of protein function—such as investigations of viral capsid assembly, enzymatic activities of non-structural proteins and host-cell interactions mediated by apoptosis-inducing factors—provide insight into mechanisms of pathogenicity and immune evasion. Together, these molecular tools support the development of sensitive diagnostics, the design of effective vaccines and the implementation of targeted control strategies to mitigate the global impact of avian viral diseases on poultry health, wildlife conservation and agricultural economies.
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Molecular Characterization of Avian Viral Pathogens publication trend
The graph below shows the total number of articles in molecular characterization of avian viral pathogens across all publications each year (not limited to Nature Index journals).
Technical terms
Polymerase chain reaction (PCR): A laboratory method for exponential amplification of specific DNA sequences to detect and characterise viral genomes.
Phylogenetic analysis: A computational approach to infer evolutionary relationships among virus strains based on genetic similarity.
Recombination: The exchange of genetic segments between different viral genomes, leading to novel variants.
Immunosuppression: A reduction in the efficacy of the host immune response, often resulting from viral infection.
Viral capsid protein (VP1): The major structural component forming the protective shell of certain avian viruses.
Apoptin (VP3): A virus-encoded protein that can induce programmed cell death in host cells.
References
- Molecular characterization and pathogenicity study of a highly pathogenic strain of chicken anemia virus that emerged in China. Frontiers in Cellular and Infection Microbiology (2023).
- Genetic diversity, distribution, and evolution of chicken anemia virus: A comparative genomic and phylogenetic analysis. Frontiers in Microbiology (2023).
- Synergy of Subgroup J Avian Leukosis Virus and Chicken Infectious Anemia Virus Enhances the Pathogenicity in Chickens. Microorganisms (2024).
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