ArticleFrontiers in immunology2025
Immunogenetic diversity of MHC class II B-Lβ genes in Brazilian Caipiras (free-range) chickens laying blue eggs.
Article in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Adaptive radiation and structural tailoring of the VietnameseFrontiers in genetics · 2026Article
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7 authors.
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Abstract
Introduction: Brazilian Caipira chickens that lay blue eggs are known to possess unique genetic traits. This study investigates the immunogenetic diversity of MHC class II B-Lβ genes (B-LβI and B-LβII) in this population, aiming to assess their potential value in selective breeding programs focused on disease resistance. Material and methods: A total of 100 chickens were analyzed using targeted sequencing of the B-LβI and B-LβII genes. The resulting nucleotide sequences were evaluated for polymorphism and compared with known alleles described in previous studies. Results: Fifteen unique nucleotide sequences were identified, of which five had not been previously reported in the scientific literature. The new alleles exhibited significant polymorphism, confirming high genetic diversity within the population. Discussion: The genetic variability observed supports earlier findings regarding the diversity of MHC genes in local chicken breeds. These novel alleles may confer advantages in immune responsiveness, reinforcing the importance of preserving local breeds as reservoirs of functional genetic diversity. Conclusion: Brazilian Caipira chickens laying blue eggs display remarkable immunogenetic diversity in MHC class II B-L β genes. This variation includes novel alleles with potential application in future breeding programs. Conservation and utilization of this genetic resource can contribute to the development of healthier and more disease-resistant commercial chicken lines.
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