Color genetics thread.

[Chicken5555]

Gold Laced and Buff Laced are both the same base color and have the same pattern genes. The difference is the dominant white gene. The Buff Laced Polish is the same exact color/pattern as the Gold Lace, but with the dominant white gene modifying the black lacing to white. Dominant white only requires one copy to express. All F1 chicks will have one copy of the dominant white, and look like Buff Laced. F1 bred back to Buff Laced will produce some birds with two copies of dominant white, and some with only one copy. There is no way to tell which bird has two copies and which has only one just by looking at them. They will all look like Buff Laced.

Oh, ok. So Gold Laced plus Buff laced = buff laced that carries one copy of dom. white instead of two.
If the F1 buff laced were to be bred with a gold lace, does that mean half would be buff laced and half would be gold laced?
Thank you for your help.

On a related subject.... I have two golden laced Polish that are only half lace. Their fronts are mottled. Does that mean they carry a copy of the gene for mottling? Would I get some fully mottled offspring from crossing those two?

 

[junebuggena]

Oh, ok. So Gold Laced plus Buff laced = buff laced that carries one copy of dom. white instead of two.
If the F1 buff laced were to be bred with a gold lace, does that mean half would be buff laced and half would be gold laced?
Thank you for your help.

On a related subject.... I have two golden laced Polish that are only half lace. Their fronts are mottled. Does that mean they carry a copy of the gene for mottling? Would I get some fully mottled offspring from crossing those two?

F1 back to Gold Laced would produce 50% black lacing and 50% with white lacing. The partially laced birds do not have a mottling gene. Lacing is a complex pattern that requires 4 different pattern genes to be present. If a bird is missing just one of the components, you get incomplete lacing that produces a spangled effect. Mottling is a recessive modifier that produces white splotches.

 

[Chicken5555]

F1 back to Gold Laced would produce 50% black lacing and 50% with white lacing. The partially laced birds do not have a mottling gene. Lacing is a complex pattern that requires 4 different pattern genes to be present. If a bird is missing just one of the components, you get incomplete lacing that produces a spangled effect. Mottling is a recessive modifier that produces white splotches.

I see. So the half-laced aren't mottled, they have a "spangled effect" but they aren't really spangled. The effect is caused by the absence of one of the four genes that are needed for complete lacing. That makes sense.


If I breed the two gold polish with incomplete lacing, will any of the offspring be fully laced? Or am I way off here?

 

[junebuggena]

If you breed them to a bird with crisp lacing, at least some of the chicks will have improved lacing. No guarantees that they will be perfect, but there should be some improvement in at least some of the chicks.

 

[Chicken5555]

Thank you!

 

[Wappoke]

Oh, ok. So Gold Laced plus Buff laced = buff laced that carries one copy of dom. white instead of two.
If the F1 buff laced were to be bred with a gold lace, does that mean half would be buff laced and half would be gold laced?
Thank you for your help.

On a related subject.... I have two golden laced Polish that are only half lace. Their fronts are mottled. Does that mean they carry a copy of the gene for mottling? Would I get some fully mottled offspring from crossing those two?

most likely the birds are heterozygous at the melanotic locus (carry one melanotic). Gold laced should carry two pattern genes, two melanotic genes, two columbian genes- these three genes when homozygous (two genes)are responsible for the lacing on a feather. Gold laced polish are birchen at the E locus, other chicken varieties that are laced are not birchen. Gold laced are also gold at the silver locus.

 

[Wappoke]

Posting to subscribe. I'm studying as much as I can on chicken genetics right now. Very interesting stuff.

Buff in buff laced polish is genetically different than the buff found in buff birds. The two varieties do have two genes in common- the dominant white gene and the columbian gene.

 

[AmandaMBG]

Anyone want to explain to me the possible color genetic behind this girl?

The red/rust feathers are speckled with blues she also has some random larger dark blue/black spots on a couple feathers. The her neck feathers are a salmon lace with light blue inside.

 

[Chicken5555]

Anyone want to explain to me the possible color genetic behind this girl?

The red/rust feathers are speckled with blues she also has some random larger dark blue/black spots on a couple feathers. The her neck feathers are a salmon lace with light blue inside.

I know this is totally off subject, but omg I love your dog!!!! what breed is he/she?

 

[Chicken5555]

most likely the birds are heterozygous at the melanotic locus (carry one melanotic). Gold laced should carry two pattern genes, two melanotic genes, two columbian genes- these three genes when homozygous (two genes)are responsible for the lacing on a feather. Gold laced polish are birchen at the E locus, other chicken varieties that are laced are not birchen. Gold laced are also gold at the silver locus.

So, if I breed the two gold laced polish that have incomplete lacing then some F1 chicks will have better lacing then? I know they won't all be perfect and that it all depends on who gets what combination of which genes.