ArticleFrontiers in cellular and infection microbiology2025
Dominance of the GI-19 genotype and genomic characterization of the S1 gene in avian infectious bronchitis virus from 2020 to 2024.
Article in Frontiers in cellular and infection microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Construction and modification of a low-copy plasmid-based infectious clone for GI-19 genotype IBV via Red/ET recombineering: A simplified and efficient reverse genetics system for coronavirus.Poultry science · 2026Article
- Divergent tissue tropism and pathogenicity of novel recombinant GI-19 and GI-22 infectious bronchitis virus strains.Poultry science · 2026Article
- Vaccination-driven evolution of infectious bronchitis virus in Korea: implication for the control of other coronavirus infections.Frontiers in veterinary science · 2026Review
- Herbal medicines against avian infectious bronchitis virus: shared host-directed and multi-stage antiviral pathways.Frontiers in veterinary science · 2026Review
- Coinfection with infectious bronchitis virus exacerbates the pathogenicity ofFrontiers in veterinary science · 2026Article
- Two novel conserved linear B-cell epitopes identified in the S2 subunit of the infectious bronchitis virus spike protein.Virus research · 2025Article
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11 authors.
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Abstract
The continuous emergence of avian infectious bronchitis virus (IBV) variants poses a critical threat to poultry health and productivity in China. In this study, we conducted comprehensive genetic and antigenic analyses of IBV strains isolated in our laboratory between 2020 and 2024. A total of 94 IBV isolates were sequenced for the S1 gene, revealing widespread nucleotide insertions, deletions, and mutations. Phylogenetic analysis indicated that GI-19 was the predominant genotype (70.21%), followed by GI-13 (21.28%). Recombination analysis using RDP 5.42 identified 14 recombinant strains, primarily GI-13/GI-22 (50%), GI-19/GI-7 (28.6%), and GI-19/GI-22 (21.4%), which were further confirmed using Simplot. Glycosylation analysis revealed that all isolates possessed 14 to18 N-glycosylation sites, whereas only the SDJN3/23 strain contained an O-glycosylation site (position 416). Novel cleavage site motifs (HRRKR, HRHRR, RRFRR) were identified in GI-19 strains, diverging from the canonical HRRRR. The evolutionary rate calculated via BEAST software, was 1.98 × 10
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