male split sexe linked color .

[Dany12]

A male split a color sexe linked cross with a Blue peahen can produce some peahen of this sexe color in one generation ?... i say ' some' because he is 'only' split of this color !

 

[Dany12]

Hens can't be split a sexe linked color !

 

[scootj79]

Correct. So when you have chicks.. any female chicks will either be the sex linked color or india blue in ratio of 50/50

 

[Dany12]

They say :
The grandparents were: purple male and female Opal!


So the mother of the two first Taupe peachicks was purple split opal!

 

[scootj79]

A male split to a sex linked color with a pure india blue hen will produce half indu blue hen chicks and half sex linked hen chicks.

 

[Dany12]

So 25% hens of this linked color !

 

[scootj79]

No 50 percent will be sex linked color of hens

 

[KsKingBee]

Half of the hens will be plain IB and the other half will be the sex-linked color.

 

[KsKingBee]

Correct. So when you have chicks.. any female chicks will either be the sex linked color or india blue in ratio of 50/50

It is an approximate average. There will be no cocks of the sex-linked color but half will be split to it.

 

[Dany12]

How can we explain the mutation Taupe?
The data:
In 2005 two Taupe colored chicks hatched from a breeding between an India Blue Peacock and a Purple Peahen.
One was bred back to the original Purple Peahen and other females also closely related. Luckily the gene for the Taupe color, although recessive, was present and resulted in more Taupe chicks......

The father ...India Blue Peacock was pure ? ... and the mother too ? No split ?
"females also closely related" ... not really precise !

The sex of the first two chicks was given by the purple peahen!
It's probably not a spontaneous mutation because it happened to two birds!

Here a spontaneous mutation in nature! it happened once by chance!