Skin color is sex linked in mixes?

[KarateHorse]

Hello everyone! I have a couple questions for the genetic experts here. I bred my Silkie rooster (dark skin) to my cinnamon queen hens (light skin) and the offspring was sex linked. The boys had light skin and the girls had dark skin. I then bred my Silkie rooster (dark skin) to my Turken hen (light skin) and once again got sex linked offspring with the boys having light skin and the girls having dark skin. Now if I bred a d'uccle rooster (light skin) to a easter egger hen (dark skin) would the offspring be sex linked? If so, would the boys have the light skin or dark skin? Does the sex link trait apply to all light skin to dark skin mixes or only silkie mixes? Thanks in advance.

 

[Cyprus]

Skin color is recessive, dominant, and sex-linked respectively.
Yellow skin is recessive (w)
White skin, wild type, is dominant (W)
Dermal Melanin, or black skin, is sex-linked, recessive and wildtype (id+) the absence of dermal melanin is dominant (Id)

CQ's are RIR and RI White crosses, which gives them homozygous recessive yellow skin (w)
Turkens and D'Uccles have white skin (W)
Silkies have the recessive dermal melanin (id+)

Dermal Melanin is sex-linked. Roosters have two copies and hens have 1. It takes two copies in males to exhibit the gene and one in females to exhibit the gene.
When a Silkie rooster carrying two copies of id+ is crossed with a CQ hen carrying one copy of w the male offspring inherit one copy of w from their mother and one copy of id+ from their father. Since they do not have both recessive copies of id+ they exhibit yellow skin.
The female offspring only inherit one copy of id+ from their father thus causing them to exhibit dark skin.

When a Silkie rooster is crossed with a Turken hen the male offspring inherit one dominant W from their mother and one recessive id+ from their father, therefore exhibiting white skin. The females, who inherit only one recessive copy of id+ from their father exhibit dark skin.

When a D'Uccle rooster carrying two dominant copies of W is crossed with an EE hen the resulting offspring will all have white skin as each offspring will inherit one copy of dominant W which will turn all skin white.

 

[Taliasun]

Breaking out the pundit square...
I found this post https://www.backyardchickens.com/threads/black-skin-genetics.130172/

 

[Taliasun]

Skin color is recessive,
Dermal Melanin is sex-linked. Roosters have two copies and hens have 1. It takes two copies in males to exhibit the gene and one in females to exhibit the gene.
When a Silkie rooster carrying two copies of id+ is crossed with a CQ hen carrying one copy of w the male offspring inherit one copy of w from their mother and one copy of id+ from their father. Since they do not have both recessive copies of id+ they exhibit yellow skin.
...
When a D'Uccle rooster carrying two dominant copies of W is crossed with an EE hen the resulting offspring will all have white skin as each offspring will inherit one copy of dominant W which will turn all skin white.

So it depends on the whether your D'Uccle is carrying two dominant or 1 dominant W?

 

[Cyprus]

So it depends on the whether your D'Uccle is carrying two dominant or 1 dominant W?

Yes.
If the D'Uccle is bred from show lines it should carry two copies of the dominant W as the hens should have white skin as well. Any other skin color in D'Uccles is a disqualification.

 

[KarateHorse]

So I hatched a chick from the d'uccle and easter egger pair and it has dark skin. This means that the d'uccle rooster only has one copy of dominant W and the chicks will not be sexlinked?

 

[Taliasun]

If he had offspring with the recessive trait then it means he passed down a recessive allele and his future offspring will get a mix of the dominant and recessive.

 

[nicalandia]

Hello everyone! I have a couple questions for the genetic experts here. I bred my Silkie rooster (dark skin) to my cinnamon queen hens (light skin) and the offspring was sex linked. The boys had light skin and the girls had dark skin. I then bred my Silkie rooster (dark skin) to my Turken hen (light skin) and once again got sex linked offspring with the boys having light skin and the girls having dark skin. Now if I bred a d'uccle rooster (light skin) to a easter egger hen (dark skin) would the offspring be sex linked? If so, would the boys have the light skin or dark skin? Does the sex link trait apply to all light skin to dark skin mixes or only silkie mixes? Thanks in advance.

What you did there was a simple sex linked cross and had nothing to do with skin color inheritance.

Your Silkie rooster has recessive sex linked dermal enhancer(id+/id+) and Autosomal Fibromelanotic(Fm/Fm), Fm needs id+/id+ to fully express the black skin, organs, meet.

Your Cinnamon Queen has sex linked dermal inhibitor Id/-(only one copy) and is fm+/fm+(not fibromelanotic) clear skin.

The cross will yield Fm/fm+ id+/- females with black skin and males with Fm/fm+ Id/id+, that single Id(sex linked dermal inhibitor) will inhibit the Fm expression, giving them a clear white/yellow skin color.


as to skin color, Silkies are wild type dominant white skin(W+) and Cinnamon Queen may be recessive yellow skin, any cross between them will yield white skin on all offsprings

 

[nicalandia]

if I bred a d'uccle rooster (light skin) to a easter egger hen (dark skin) would the offspring be sex linked? If so, would the boys have the light skin or dark skin?

D'uccle rooster is Id/Id fm+/fm+(no black skin, no black face)
EE hen are id+/- fm+/fm+(no black skin, but dark shanks due to recessive dermal enhancer) if you cross them the pullets will be Id/- and the cockerels will be Id/id+, all with white or yellow shanks and clear skin

 

[Scrumdidlyump]

Can you post pictures of the offspring of the silkie and cinnamon queen? I am curious, because I am about to incubate eggs from the same cross!