Adopts | MYOs | Breeding | Genetics
The "S" Locus determines the white spotting on a dog. White spotting cover over every other pigment, or technically prevents it from showing. In real life, only two "S" locus genes are proven to exist, but to make it easier to predict what patterns will be made we'll be using some more theoretical genes.
"S" is the most dominant and if homozygous makes no white spotting. "Ssi" makes what is called minimal or residual white, which is a small amount of white on the face, paws, tail, and chest. They can have as little white as wanted. "Ssp" makes Pseudo Irish spotting, which mimics Irish but is more irregular.
"si" is Irish white spotting. Irish white goes between the eyes and over the muzzle down the chest, as well as on the paws and tail. There's can be white on the back of the neck or even a collar of white across the whole thing. "sisp" can extend the amount of white between irish and true piebald.
"sp" is piebald. Piebald is varied, but usually has a colored head with or without a blaze on the face and patches on the body. "spsw" would make extreme piebald with more white than usual, but not quite extreme white.
"sw" is extreme white. extreme whites are mostly white with color on the and maybe base of tail.
All shown are just examples and besides Irish which follows a specific pattern, your white spotting doesn't have to follow the same pattern as these!
