Recently I read Ann Seranne's book "The Joy of breeding your own show dog" where she writes about the "
recessive “blue” silky coat".
Are we dealing with recessive here?
Because if we did, it would be easier for breeders to lock this trait in their lines.
Instead, breeding together 2
dark blue silky coats, the resulting pups are not always dark blue!
And this is easily explainable if we consider
only the Graying Gene effect.
According to our knowledge for Graying Gene "anecdotal" principles, a
dark steel blue dog must be Gg in G locus.
This simply means that the elusive DARK STEEL BLUE is a result of heterozygosity.
So breeding together with another Gg dog, the resulting pups will have 50% chances to be Gg, 25% to be GG (silvery color) and 25% to be gg (black).
To add (again
) more confusion
Quoted from
Yorky Club Magazine - United by passion for Yorkies. Quote:
I could not resisted to ask the breeders if there is any evidence that breeding a light blue Yorkie to a dark one or a light gold to a dark gold will produce the correct color. Mind you, this theory has been going on for years. Logically, it makes sense; genetically, it does not.
It is a crazy idea mixing a black dog with a silver one. It is like mixing paint, it does not work.” Affirms Mrs. Gordon. **
We might breed a light dog if the dog is exceptional in other ways and it’s color pattern was where it should be and if the dog did not have a running gold and if the dog still was darker on the end of the tail. If the texture is correct a dog with a very intense gold (nearly red) will darken both colors but of the offspring or this breeding will have to be bred to correct texture or you will be right back where you started with a mixed bag of colors.”
Roberta agrees “They do not mix together or dilute one another.” And then, she observes “unfortunately, with our litters being as small as they are, there is not enough pups to really show your percentage of each color. There is not enough puppies to draw the correct conclusion.”
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**
Let assume that a black bitch is gg, and a silver dog is GG.
Bred together, ALL the resultant puppies will be Gg...
Hmmm
