Dogs can be bred father and daughter. This process is known as inbreeding. When a breeder wishes to generate puppies that are nearly identical to one specific dog, in this case the father, inbreeding is done.
Breeding the daughters back to the father results in puppies that are 75% genetically identical to the father if a breeder finds a male dog that he deems to be an ideal specimen.
The genetic influence of that specific male on the offspring is further increased by breeding these daughters/granddaughters back to the sire. A strain of dogs that breeds true for particular desirable qualities can be swiftly created by inbreeding. Additionally, it can swiftly identify recessive genetic characteristics that might lead to diseases and birth problems.