Description: The so-called “furnishing” means that the dog has increased hair growth on the face and legs, which is referred to as a mustache and eyebrow. Based on the results of a whole-genome association study, (Cadieu et al. 2009) insertion of 167 bp of 3´UTR was detected in the RSPO2 (encoding R-sponding-2) gene in wirehaired breeds with eyebrows and mustaches (furnishing). The insertion in RSPO2 gene was present in a heterozygous or homozygous state in 297 dogs with eyebrows and mustache from 298 tested. RSPO2 gene without insertion was present in all no-furnishing examined 406 dogs. These traits are inherited autosomal dominant, which means, a dog with furnishing carry the insertion on one (F/n) or both (F/F) alleles. Dogs without furnishing carry only alleles without insertion (n/n).
Inheritance: autosomal dominant
Mutation: insertion 167 bp in 3´UTR region in RSPO2 gene
Sample: EDTA whole blood (1.0 ml) or 2 buccal brushes. For official purposes, the confirmation of the dog’s identity by Veterinarian is recommended.
The analysis is important for the following breeds: Brussels Griffon, Chinese crested dog, Dachshund, Deutsch Drahthaar, Irish Soft-Coated Wheaten Terrier
Notes: Based on Cadieu et al. 2009 study, dogs carrying the insertion in the RSPO2 gene and at the same time having the TT or CT genotype in the KRT71 gene have a similar phenotype to the wirehaired dogs, but their hair is longer and more curly.