TICKED - T GENE:
A dominant mutation that causes the presence of color (flecks of color) in areas that have been made white by the effect of alleles in the white spotting (S) series.

Ticked ("T/T") is incompletely dominant to non-ticked ("t/t"). There are various degrees of ticking from just a few large spots to very heavy ticking which appears to be roan, similar to the Australian Cattle Dog. Ticking is dominate over clear white markings. If you breed a ticked dog to a mate with the clear white, some of the pups will be ticked, some won't. You can tell when a puppy will be ticked as an adult, by looking at the newborn pups nose. If the pup is born with a solid or completely pigmented nose leather, the pup will be a ticked adult. Breeding two ticked mates together will produce a whole litter of ticked puppies. Ticking develops over time. The extreme white patterned dog in the top left picture was non ticked white as a pup. Every year she developed more and more spots. Ruby, the chocolate on the right has the smaller denser type ticking.

Below, Storm has a few large spots. notice the ticking on his front leg.

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