yes the GSP can be grey in color - solid, ticked or patched). It is a result of a mutation in the MLPH gene and is known as Dilution. A dilute grey pup carries two copies of this recessive allelle and its parents must both be carriers. Since its unlikley anyone would knowingly breed two carriers of the gene, the parents are likely of the liver and white phenotype. there is now a test for the gene so breeders can test parents before breeding them but its a new test and not all breeders do genetic tests so you might occasionally see a grey GSP.The grey pups can be registered with the AKC but the grey color is considered a disqualifying fault in the show ring.
Answered by Anonymous - 9/12/2013 11:46:06 AM