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Originally Posted by pstinard  Coat color DNA testing in dogs: Theory meets practice
This article is behind a pay firewall, but it describes commercial DNA testing for coat color genes in dogs and has a table of alleles that have been tested for in various breeds, including the Yorkshire Terrier. Yorkies have been tested for the presence of "sp" (Parti color), "b" (brown), and "e" ("Gold Dust") alleles. The only problem is that these alleles have very specific DNA fingerprints, and they arose in other breeds. They could not have arisen spontaneously in the Yorkshire Terrier. |
That's nothing new in the world of breeding dogs, outcrossing to achieve a certain color or a certain look is as old as time, such as we see in any of the lines of Yorkies that carried a short snout little baby doll face. People could easily say that they a not purebred, since the original bred Yorkies were quite facey. People who are close minded about something new, that only see the world in black and white, will never have the pleasure of taking that trip "somewhere over the rainbow"
