The easiest way to create a new breed is by breed crossing. Selecting dogs that closely approximate each other, mate these and then through constant mating and selection, elimination of undesirable traits and accumulation of traits that are in the right direction, the goal is obtained. The next way in which it is done is by the creation of a different standard for an old breed and then breeding toward that. A third way of creating a new breed is to watch for a mutation and breed from the animal which possesses it. It is often possible to create a new breed on this basis of a color alone. Mutations accounted for the wire haired coat in one or more of our breeds of dogs, and new breeds were started on that basis.
In 3 generations it is possible to produce a new breed [but improbable] to produce a breed that will breed as true as most of the recognized breeds today. There will be some variation, but not nearly as much as might be expected. The originator must understand what characters are dominant and what are recessive and realize that when a dominant character has disappeared from a strain that it is gone for good, but that where recessives lurk, they are quite likely to be reappearing generation after generation.
To thoroughly smoke out the recessives from a new breed requires great patience and many generations, but if a breed which is composed mostly of recessives is created, then it is possible to make it uniform in 3 generations. To create any new breed it should take at least 10 generations.
Copyright (R) 2000 National New and Rare Breed Association