SILKIES... White + Splash = ?

[racuda]

I get the genetics of blue, black and splash combination possibilities. If slash is a result of two recessive blue genes, and white is two recessive white genes, then would a white X slash mating result in 100% white?

 

[Krys109uk]

Usually the blue gene (Bl) is considered incmpletely dominant. Mostly because the presence of one gene shows. The presence of two blue genes gives the splash colour.

With recessive white (c) the presence of one gene is, for all intents & purposes, cannot be seen. It is only when both genes at that positio (locus) are recessive white that the bird will be white.

If one crosses a splash bird, two blue genes (Bl//BL), with a recessive white bird (c//c) the offspring will only inherit one recessive white &, being recessive, the gene will have no noticeable effect on the colour of the offspring. Thus the colour of other plumage colour genes inherited from the white parent will now also be a determining factor of the colour of the offspring.
At a guess, I'd think there is a good chance the offspring of such a cross might be blue.
If the splash parent also carried a recessive white gene there would then be about 50% white offspring.

 

[greenfamilyfarms]

Depends on the lineage of the birds. Are they pure splash and pure white? There could be some recessive genes "hiding" in their genetic pool.

 

[racuda]

Quote:
I don't know. These are the ones that I was interested in:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=170317019321&Category=46532

 

[Poulets De Cajun]

More than likely the copy of the andalusian blue gene from the splash would allow only one copy of the recessive white to be passed on, leaving whatever genes the white is covering exposed. You'd most likely get a patridge, or "calico" looking bird depending on what the white is covering.

 

[racuda]

Quote:
That is what I DON'T want. Thanks!

 

[Krys109uk]

Why not stick breeding within a colour until you start to get the hang of genetics?

More than likely the copy of the andalusian blue gene from the splash would allow only one copy of the recessive white to be passed on, leaving whatever genes the white is covering exposed.

Not meaning to be rude but that statement could be confusing. From the recessve white, one gene for recessive white would be inherited whatever colour the bird was bred to. This is qite independent from the Andalusian blue gene.
An an andalusian blue gene would also be passed on....but the Andalusian blue & recessive white are quite separte alleles.

 

[Sonoran Silkies]

Since the bird will inherit a blue gene from the splash parent, chances are pretty high that it will be a blue something--blue partridge, blue grey (not sure how that would look), blue ... But the chances are also high that the quality of whatever patterns might be present would not be so hot as they had been ignored in the recessive white parent---because they were not apparent.

 

[Poulets De Cajun]

Quote:
Right... and thats what I mean, but whatever patterning the white was covering would probably appear as well.

See Suze's statement about blue partridge, or something else blue.

One of those cases where I knew what I wanted to say, but didn't get it out right.

 

[Sonoran Silkies]

Earlier today my DH suggested I needed diction lessons--I think I just needed more sleep and coffee, but I was definitely not communicating well