I am glad this came up. I have a litter that is two weeks old that is all spotted. 3 were born alive and 1 was born dead. I have been trying to breed this particular pair for over two months and only finally have I got some pups. They bred together four times in the last two months and nothing was produced or it was reabsorbed as fetuses. I finally split them up. The mother is a spotted argente and the father was her son a spotted light gray.( The official names for the shades of gray still has me confused.) This litter has two that look like him ( spotted light gray) and one that is spotted dark gray. I am fascinated by this pup's coloring. His spotting is very large. It is mottled on his hind quarters too. The graying is in shades also. His head has a darker gray and it gets lighter as it goes toward his hind end. I can't wait to see him grow up.Do you guys and gals have clue as to what I have here? Can you guess the genectics? I am clueless. Thanks!
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>From: Mathias Gabel <[EMAIL PROTECTED]>
>Reply-To: Mathias Gabel <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Genetics of the Spotted (Sp) allele
>Date: Tue, 26 Jun 2001 14:55:52 +0200
>
>Hi!
>
>Some time ago, a reader of this mailinglist, reported that the entire offspring of a spotted pair were also spotted, although one third of the pubs would expected to be non-spotted:
>
>Parents: Sp sp(+) x Sp sp(+)
>
>Expected offspring:
>1/4 Sp Sp (lethal before or shortly after birth)
>2/4 Sp sp(+) (Spotted)
>1/4 sp(+) sp(+) (Non-spotted)
>
>So, littersize would be reduced and the survivors would be 2/3 spotted and 1/3 non-spotted.
>
>I've recently paired a black spotted with a black non-spotted. They had 13 pups in three litters. The dominant character of Spotted would suggest, that half of them were spotted:
>
>Parents: Sp sp(+) x sp(+) sp(+)
>
>Expected offspring:
>
>1/2 Sp sp(+) (Spotted)
>1/2 sp(+) sp(+) (Non-spotted)
>
>But that was not the case. Only three of them were spotted, the rest were solid black.
>
>Has anyone in this group experienced a similar difference in the inheritance of the Spotted allele?
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