Smokey color gene in chickens?

[KAGs waterfowl]

So, I’ve seen pictures of Smokey colored chickens and understand they breed dominant to dominant white, but how do you get this gene? Is it from breeding dominant white to some other color? What is the gene caused by? Really like Smokey colored birds, as they resemble a blue, but are true-breeding (homozygous) like a lavender.
Thank you!

 

[nicalandia]

Smokey is an allelic mutation of the dominant gene, there are three known mutations on that allele and one wildtype counter part. i+/i+ which is wildtype(black),

I/I which is dominant white(which is actually co-dominant) I^D/I^D which is Dun and is a incomplete dominant mutation(as opposed to the co-dominance of dominant white)

Smokey I^S/I^S it's recessive to dominant white.

i+/i+ : keeps black feathers, normal gold tone
I/i+ : Turns black feather white, with some black specks on white feathers, keeps gold untouched
I/I : Turn black feathers All white and fades gold feathers at least one shade from original

I^D/i+ Turns black feather Dun/Chocolate and keeps gold untouched
I^D/I^D : Turns black feathers to a khaki color keeps gold untouched
I/I^D : Turns black feather white, with some chocolate specks on white feathers, keeps gold untouched

I/I^S : Turns black feather white, with some grey specks on white feathers, keeps gold untouched
I^D/I^S : Unknown but most likely a Platinum color
I^S/I^S : Turns black feathers a grey/smokey color and keeps gold untouched
I^S/i+ : Researchers said that it's partially dominant over wildtype i+

 

[Auntiejessi3]

That looks like a blue

 

[nicalandia]

I'm not sure if my little hen is smokey. But its ancestors do have the blood of white leghorn.

Not smokey, the I^S dominant white allelic mutation has an even color(no dark, saddle, hackle)

 

[RoostersAreAwesome]

Do you have a picture example of what you consider smoky?

 

[MysteryChicken]

If I remember right, smokey is a Genetic mutation in the dominant white gene, that hasn't made it out of the lab yet, as far as we know though.

 

[gimmie birdies]

 

[nicalandia]

Smokey is an allelic mutation of the dominant white allele. Blue is a different mutation

 

[nicalandia]

Interesting, nicalandia.
What breeds can be used to produce these mutations? Obviously a dominant white leghorn, but what other breeds would I use if I wanted to produce these?

The smokey mutation has been confined to lab research only. Unless by chance you come by spontaneous mutation(not unheard of, for example the silkie feather mutations seems to have appeared spontaneously a few times already). You will not come up with something similar.

 

[nicalandia]

Good to know. Thank you.

If you are looking for new color to work with perhaps you will take the lead and work with both Dun and Chocolate on the same bird. I would have seem that homozygous Dun(I^D/I^D) and recessive chocolate(choc) can combined and produce a Beige like color