Bobtail Cochin color genetics?

[KAGs waterfowl]

Does anyone know how the genetics work on bobtail Cochins? It seems that nobody knows exactly what they are generally. Thanks!

 

[Amer]

They are a recessive gene.
@nicalandia
Are they on the recessive white locus? The pattern seems to suggest it.

 

[nicalandia]

From the scarse information avaiable I've been able todo find, they are Birchen a the e locus(They Poped Up from Brown Reds) and sex-linked Imperfect Albinism at the Sex linked S locus.

 

[Amer]

From the scarse information avaiable I've been able todo find, they are Birchen a the e locus(They Poped Up from Brown Reds) and sex-linked Imperfect Albinism at the Sex linked S locus.

Well I was wrong. Interesting!

 

[nicalandia]

Well I was wrong. Interesting!

The males are mostly white due to the double effect of s^al/s^al vs females being s^lal/- also there is more than one form of recessive white the one based on the mottling locus(mo^w) found in asían breeds(I am currently dealing with such mutation on my white Asil line)

 

[Amer]

The males are mostly white due to the double effect of s^al/s^al vs females being s^lal/- also there is more than one form of recessive white the one based on the mottling locus(mo^w) found in asían breeds(I am currently dealing with such mutation on my white Asil line)

Oh, interesting.

 

[KAGs waterfowl]

Awesome! Do you have any idea what they look like crossed on a black birchen Cochin hen?

 

[nicalandia]

Awesome! Do you have any idea what they look like crossed on a black birchen Cochin hen?

Black Birchen because of the recessive Nature

 

[KAGs waterfowl]

Awesome!

 

[MysteryChicken]

Watching.