Peer-reviewed veterinary case report
Genetic links to hip dysplasia and weight in Swedish Labradors
By Kieler, Ida Nordang et al.·Published in Scientific reports·2024·Department of Veterinary Clinical Sciences·View original on PubMed →
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Original publication title: Genome wide association study in Swedish Labrador retrievers identifies genetic loci associated with hip dysplasia and body weight.
- Species:
- dog
Plain-English summary
A study found specific genetic markers linked to hip dysplasia and body weight in Swedish Labrador retrievers. Researchers looked at 209 dogs and discovered a significant genetic location on chromosome 24 that is associated with hip dysplasia, which could help in understanding this common joint problem. They also identified two genetic markers on chromosomes 10 and 31 related to body weight in 85 female Labradors. These findings may help breeders and veterinarians better manage and predict these issues in Labradors, potentially leading to healthier dogs in the future.
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Abstract
Genome wide association studies (GWAS) have been utilized to identify genetic risk loci associated with both simple and complex inherited disorders. Here, we performed a GWAS in Labrador retrievers to identify genetic loci associated with hip dysplasia and body weight. Hip dysplasia scores were available for 209 genotyped dogs. We identified a significantly associated locus for hip dysplasia on chromosome 24, with three equally associated SNPs (p = 4.3 × 10) in complete linkage disequilibrium located within NDRG3, a gene which in humans has been shown to be differentially expressed in osteoarthritic joint cartilage. Body weight, available for 85 female dogs, was used as phenotype for a second analysis. We identified two significantly associated loci on chromosome 10 (p = 4.5 × 10) and chromosome 31 (p = 2.5 × 10). The most associated SNPs within these loci were located within the introns of the PRKCE and CADM2 genes, respectively. PRKCE has been shown to play a role in regulation of adipogenesis whilst CADM2 has been associated with body weight in multiple human GWAS. In summary, we identified credible candidate loci explaining part of the genetic inheritance for hip dysplasia and body weight in Labrador retrievers with strong candidate genes in each locus previously implicated in the phenotypes investigated.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/38480780/