Canine Hair Furnishings 1-2
The term "furnishings" refers to the longer moustache and eyebrows seen in dogs with wire-hair and can also be seen in other breeds. Some breeds are fixed for this trait, such as the Airedale Terrier. However, in other breeds, this can be variable. In breeds such as the Portuguese Water Dog, furnishings can be variable, but are required for a dog to adhere to the breed standard. In the Portuguese Water Dog, dogs without furnishings are referred to as having an "Improper Coat."
Furnishings are a dominant trait, meaning that a dog only needs to have one copy of the furnishings gene to show that physical trait. Dogs that are heterozygous for the
furnishings gene can pass on either the furnishings gene, or the non-furnishings gene to any offspring. If two dogs are both heterozygous for furnishings, there is a 25% chance that each offspring could get the non-furnishings allele from each parent and not display that trait. This can make testing an important tool to be able to more accurately predict the type of coat of all offspring being produced.
Hair Furnishings Testing:
A novel Furnishings or Improper Coat variant (F2) was identified by Animal Genetics in several breeds of dogs. The mutation is recessive to the current RSPO2 variant (F) but on it's own causes a lesser form of furnishing. All requests for furnishings testing will include both F and F2 variants at no additional costs.
Animal Genetics accepts blood, buccal swab and dewclaw samples for testing. Sample collection kits are available and can be ordered at Canine Test Now.
Testing Is Relevant for the Following Breeds:
Testing is appropriate for any type of dog suspected to have hair furnishings. Testing is recommended for the following breeds:
Brussels Griffon, Chinese Crested, Dachshund, German Wirehaired Pointer, Havana Silk Dog, Havanese, Jack Russell Terrier, Portuguese Water Dog, Soft-Coated Wheaten Terrier.
Animal Genetics offers DNA testing for dominant furnishings allele. The genetic test verifies the presence of the mutation and presents results as one of the following:
* Additional causes of this trait may exist. A negative result for this mutation does not eliminate the possibility that an additional, yet unidentified mutation or mutations in the genome may lead to a similar trait.
Furnishings1-2 / Improper Coat results:
|F1/F1||Furnishings||The dog has two copies of the furnishings-1 allele. The dog will have furnishings, and will always produce puppies with furnishings. 2 copies of Improper Coat, dog has Improper Coat, dog will NOT have longer hair on the muzzle and eyebrows.|
|F1/n||Furnishings||Both the dominant and recessive alleles are detected. The dog will have furnishings, and carries the allele for no furnishings. The dog can pass on a copy of either allele to any offspring. 1 copy of Improper Coat, carrier, dog will have longer hair on the muzzle and eyebrows.|
|n/n||Non-Furnishings||The dog is negative for the furnishings-1 variant. The dog will have no furnishings, and will always pass on the allele responsible for no furnishings to any offspring. No copies of Improper Coat, normal, dog will have longer hair on the muzzle and eyebrows.|
|F2/F2||Furnishings||The dog has two copies of the furnishings-2 allele. The dog will have minimal furnishings, and will always produce puppies with come furnishings.|
|F2/n||Furnishings||Both the dominant and recessive alleles are detected. The dog will have furnishings, and carries the allele for no furnishings. The dog can pass on a copy of either allele to any offspring.|
|n/n||Non-Furnishings||The dog is negative for the furnishings-2 gene. The dog will have no furnishings, and will always pass on the allele responsible for no furnishings to any offspring. No copies of Improper Coat, normal, dog will have longer hair on the muzzle and eyebrows.|
|F2/F1||Furnishings||The dog has one copy of furnishings-2 and one copy of furnishings-1 allele. The dog will have normal furnishings, and will always produce puppies with some level of furnishings.|