Association study of candidate genes for primary cataracts and fine-mapping of a candidate region on dog chromosome 1 in Entlebucher mountain dogs
2008

Study of Genes Linked to Cataracts in Entlebucher Mountain Dogs

Sample size: 88 publication Evidence: moderate

Author Information

Author(s): Christina Müller, Ottmar Distl

Primary Institution: University of Veterinary Medicine Hannover, Foundation

Hypothesis

Identifying candidate genes associated with primary non-congenital cataracts in Entlebucher mountain dogs.

Conclusion

A significant genomic region associated with cataracts was identified on canine chromosome 1, but no polymorphisms in the candidate genes were linked to the cataract phenotype.

Supporting Evidence

  • A significant haplotype associated with cataracts was identified on CFA1.
  • The study genotyped 39 microsatellite markers for 31 candidate genes.
  • No polymorphisms in the candidate genes FTL and LIM2 were found to be associated with cataracts.

Takeaway

The study looked at genes that might cause cataracts in a specific dog breed and found a region in their DNA that seems important, but they didn't find the exact gene causing the problem.

Methodology

Genotyping of microsatellite markers and sequencing of candidate genes in 88 Entlebucher mountain dogs.

Limitations

The study could not identify the specific gene responsible for cataracts despite finding a linked genomic region.

Participant Demographics

88 purebred Entlebucher mountain dogs from 10 families, with 65 showing clinical signs of cataracts.

Statistical Information

P-Value

0.004

Statistical Significance

p=0.0133

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