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Originally Posted by dezertblu "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. "
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: |
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I will have to read that book. Before the AKC would register these dogs, they did extensive DNA testing, and they were satisfied that the were full blooded Yorkshire Terrier. So I have no idea why that writer would write that, or if he even knows what he is talking about.
It is rumored that a Maltese was part of the make up way back when the breed was first established, That rumor has been neither proven nor disproven. So I gues it is a possibility and if so then that could be where it came form. If that is the case then it was part of the original make up of the breed, and therefore it would be carried in some yorkies.