GSD With White Shepherd Parents - Question For Mods - Page 2

Heritage this is what I said: "To get a sable in the litter, at least one parent must be sable. Are you sure the sire is black and tan and not tan point sable ( patterned sable which can appear like black saddle like the dog pictured)"

Joanro, you are correct that one parent must be sable to produce a sable pup; however you have to understand that a white is "disguised" by a masking gene, and their true color (on the a-locus) is generally a normal GSD color. In this case the white is probably masking sable.

This is a good site

Color Genetics in the German Shepherd Dog

http://www.ddr-k9.com/colors.html

 

altost, interesting concept. Is there any record of a sable pup produced by mating of two white gsd, or is this only theory?

Theoretically, two whites cannot produce anything other than whites, because both are homozygous recessive ee and will supply one e each to all their​ offsprings.

Homozygous ee will mask whatever colour the pups were to express because of their alleles in A locus, but these alleles are nevertheless carried, and may express whenever a white is mated with anything other than whites. So, a pairing of even Black & White CAN produce Sables, if the white is carrying sable.

Joanro, one parent has to be "colored" for the coat color to express itself. White is recessive. So, two white parents can only have white puppies. As stated earlier, white is a masking gene, so the dog's genotype could be sable, black and red, bicolor, or black. Theoretically, the whites could even still carry brindle. That's interesting.

Relya, that's what I said. I was told on page one that I'm wrong. So I ask for proof that two white GSD will produce a sable colored pup.

Yes, two white GSD cannot produce a Sable or any other​ colour. But, a white and a black & tan can produce a Sable, and the b&t doesn't NEED to be a "Pattern Sable" to achieve that. Only the white has to carry sable.

I think Sunsilver had stated in a corrigendum that both parents weren't actually white, one was b&t.

Wasn't talking to you. You have not said anything new.

Sorry, I didn't know you own this thread.... My bad.