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Reverse Genetics System for the Avian Coronavirus Infectious Bronchitis Virus
Erica Bickerton1, Sarah M Keep2, Paul Britton2
1The Pirbright Institute, Ash Road, Pirbright, Surrey, GU24 0NF, UK. erica.bickerton@pirbright.ac.uk.
Methods in Molecular Biology (Clifton, N.J.)
|May 17, 2017
Summary
Researchers created a reverse genetics system for avian infectious bronchitis virus (IBV). This system enables precise genetic modifications to IBV, facilitating the study of this important avian coronavirus.
Area of Science:
- Virology
- Molecular Biology
- Genetics
Background:
- Avian infectious bronchitis virus (IBV) is a significant pathogen in poultry.
- Developing efficient reverse genetics systems is crucial for studying and manipulating viral genomes.
- Existing methods for IBV genetic manipulation have limitations.
Purpose of the Study:
- To establish a novel reverse genetics system for IBV.
- To enable precise genetic modifications of the IBV genome.
- To facilitate the generation of infectious recombinant IBVs.
Main Methods:
- Insertion of full-length IBV cDNA into the vaccinia virus genome under a T7 promoter.
- Utilizing vaccinia virus as a vector for homologous recombination-based modifications.
- Employing transient dominant selection for nucleotide substitution, deletion, and gene exchange.
- Generating infectious recombinant IBVs via transfection into cells infected with T7 RNA polymerase-expressing fowlpox virus.
Main Results:
- Successfully developed a functional reverse genetics system for IBV.
- Demonstrated the ability to introduce specific nucleotide substitutions, genomic deletions, and gene exchanges.
- Generated infectious recombinant IBVs with desired genetic modifications.
Conclusions:
- The developed system provides a powerful tool for IBV reverse genetics.
- This platform allows for targeted genetic engineering of IBV.
- Facilitates deeper understanding of IBV pathogenesis and development of control strategies.
Keywords:
AvianCoronavirusFowlpox virusInfectious bronchitis virus (IBV)NidovirusReverse geneticsT7 RNA polymeraseTransient dominant selection (TDS)Vaccinia virusMore Related Videos
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