The curly coat is caused by a mutation in the Keratin-71 (KRT71) gene. The test can be performed for any breed but is particularly relevant for the following breeds: Airedale Terrier, Bichon Frise, Havanese, Maltese, Border Collie, Chesapeake Bay Retriever, Chihuahua, Dachshund, Leonberger, Portuguese Water Dog, Welsh Terrier, Wire Fox Terrier. This test is not valid for the Golden Retriever.
