Congenital sensorineural deafness in dogs: a molecular genetic approach toward unravelling the responsible genes.
Deafness is often diagnosed in different dog breeds and has been identified as a significant problem for breeders, owners and clinicians. The aetiology can be inherited or acquired, and a distinction must be made between sensorineural and conductive forms of deafness. This paper provides a brief overview of the varieties of findings in different dog breeds and in one breed in particular including prevalence, phenotypic and gender associations, histology, modes of inheritance and the number of contributing genes in congenital sensorineural deafness. We have also described molecular genetic approaches to canine hearing loss and discuss how comparative genomics could help reduce the prevalence of deafness in affected breeds leading to new insights into the molecular mechanisms of auditory function in both dogs and humans.
Rak
Simone G
SG
Institute of Animal Breeding and Genetics, School of Veterinary Medicine Hannover, Bunteweg 17p, 30559 Hannover, Germany.
Distl
Ottmar
O
D000818:Animals; D004283:Dog Diseases / Q000151:congenital / Q000235:genetics*; D004285:Dogs; D020022:Genetic Predisposition to Disease; D006319:Hearing Loss, Sensorineural / Q000235:genetics / Q000662:veterinary*; D010375:Pedigree