I think what everyone seems to over look is the GENETICS of the dog. There are two ways a "new" breed is created. 1. A combination of 3 breeds...which takes years and years to set phenotype and genotype or 2. Lots and lots of inbreeding. Phenotype is the physical appearance you can see. Genotype is the genetics which may or may not be present in appearance.
Mr Biewer set the phenotype of the dogs. The breed is quite capable of resembling one phenotype and the results genetically similar to their parents.
This process takes literally years....so no it wasn't poof...it's a new breed. The dogs have been around for 26 years. You set the types, keep stud books, dna parents and accomplish a gene pool which produces litters consistent with type and genetics.
Genetics isn't opinion. It's fact and the information readily assessable.
They all were not bred back to yorkshire terriers. My pedigrees do not have any black/tan dogs in them for 7 generations. That 7th generation is one of the foundation dogs.
Breeding to a parti yorkshire terrier...or a standard colored yorkie is doing nothing but diluting the biewer gene. JMHO.
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