Doubts and questions regarding breeding carriers have been present among dog breeders since first development of modern dog breeds. With the fast development in the field of genetics and molecular biology, a number of DNA tests became available for purebred dogs. These tests became a powerful tool in the control of the quality of one’s dog, but DNA tests also enabled planning of breeding program on a whole new level.
The bond between humans and dogs is unique, closer than between any other species. This bond is a result of dog breeding, which started to form more than 100 000 years ago with the first domesticated wolf.
After the first domestication of dogs from the grey wolf, the number of the dog population grew quickly, matching the rising number of agrarian societies. Even in those early ages of the first dog populations, people were breeding dogs in order to acquire desired traits. One of the most important traits was, and still is, the dog coat color.