VetGen - The leader in veterinary genetic disease research and genetic disease detection services for purebred animals

Breeds Serviced

  • Bassett Hound
  • Greater Swiss Mountain Dog
  • Newfoundland
  • Landseer
  • Spitz


Thrombopathia is an inherited disorder that is characterized by prolonged bleeding and clotting time. The disease is due to mutations in a protein that signals platelets to stick together. To date, three distinc mutations have been found in the same gene that are responsible for the disease in three different breeds: Basset Hound, Spitz, and Landseers. A mutation has been found in another gene that is responsible for the disease in the Greater Swiss Mountain Dog.

Result types: Clear, Heterozygous (1 copy of the mutation), and Affected (2 copies)