Quote:
Originally Posted by lisatodd  Let me know what you think about this study......
[COLOR="Red"]"Genetically the Yorkshire Terrier does NOT carry the piebald gene, which is what is needed for the large amounts of white coloring on any breed. The only way that gene could come into existance is for breedings to have occurred somewhere along the line with Maltese or Shih Tzu. My personal theory is that both are great possibilities.
The important issue we want to look at here is the SS which includes a description ot the Spotting gene. The information below is taken from Malcolm Willis' "Genetics of the Dog" The genetic makeup for the Yorkshire Terrier is:
asasBBCCDDEEGGmmSStt |
Malcolm Willis book was written almost 20 years ago and during the last 20 years, new tests, studies and genetic information has come to light. It is thougth that the genetic makeup for the yorkshire terrier was asasBBCCDDEEGGmmSStt, but what you
see in the yorkie and what may actually be, could be two different things?
Some of the information that you posted may be outdated and some of the information is speculation and opinions of the writer because the best known parti line is coming out of a show breeders line, a breeder who's been breeding and showing for 40 years. I have a 14 month old parti male, who is
all Nikkos breeding, and was bred by the Nikkos breeder.
I like to use the following as food for thought: This illustration was drawn in the 1800's showing terrier type dogs at play, running at liberty and none wearing a chastity belt - most of the dogs pictured were thought to have been breeds who helped start the Yorkshire terrier breed. The picture depicts the Skye Terrier, the Scotch Terrier, the English Smooth Terrier, the Crossed Scotch Terrier, the Dandie Dinmont and the Bull Terrier. The Bull terrier and the crossed Scotch terrier are Parti colored. One of the early foundation dogs of our breed "Swift's Old Crab" was a crossed scotch terrier and even though "Old Crab" showed the accepted yorkie coloring, who knows what recessive genes he may have harbored (maybe he was a descendant of the parti colored crossed scotch terrier in the drawing?)