No offense taken! I sent an email to MARS Labs asking how many Yorkies were in their DNA database, and how they were certified as purebred. They replied that they had a little over 300 Yorkies in their database. The US ones were all AKC registered with pedigrees. The Canadian dogs were all Canadian Kennel Club dogs with pedigrees. The European ones were certified by the European clubs.
I think that the quality of dogs in their database is good, but they really need to add more Yorkie DNA samples to their database.
Here's a bit of interesting information about the MARS parent company:
Mars brands include: Petcare -- PEDIGREE(R) , ROYAL CANIN(R) , WHISKAS(R) , KITEKAT(R) , BANFIELD(R) Pet Hospital and NUTRO(R) ; Chocolate -- M&M'S(R) , SNICKERS(R) , DOVE(R) , GALAXY(R) , MARS(R) , MILKY WAY(R) and TWIX(R) ; Wrigley -- DOUBLEMINT(R) , EXTRA(R) , ORBIT(R) and 5(TM) chewing gums, SKITTLES(R) and STARBURST(R) candies, and ALTOIDS(R) AND LIFESAVERS(R) mints. Food -- UNCLE BEN'S(R) , DOLMIO(R) , EBLY(R) , MASTERFOODS(R) , SEEDS OF CHANGE(R) and ROYCO(R) ; Drinks -- ALTERRA COFFEE ROASTERS(TM), THE BRIGHT TEA COMPANY(TM), KLIX(R) and FLAVIA(R) ; Symbioscience -- COCOAVIA(R) WISDOM PANEL(R) and SERAMIS(R) .
From:
New Improved Dog DNA Test Now Covers 200+ Breeds And Varieties - WSJ.com