Shaftails - Creamino x Normal = ?
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L in Ontario
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Shaftails - Creamino x Normal = ?
Would all the chicks from a Creamino female and Normal male be Normal chicks split to Creamino
Liz
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MLaRue
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Re: Shaftails - Creamino x Normal = ?
No, the females wouldn't be split to cream. Only the males can be split to cream.
http://www.birdbazaar.com/BB-ColorGenetics.htm
Quoted from the website:
Creamino plumage coloration, as well as a fawn, is sex-linked recessive trait. Birds that have this coloration carry ino mutation in a Z sex-chromosome that is usually referred to as “cream-ino". This mutation will visually appear in females because no counterpart gene is present to suppress it. Normal shafttail males Z+Zino are described as being split to ino, a.k.a. split to creamino. Again, if a male Z+Zino is in pair with the normal female, we will obtain only female mutants ZinoW; the other birds will be normal males Z+Z+ and normal females Z+W or normal males split to creamino Z+Zino, Table 5. With a male split to ino mutation ZinoZ+ and a creamino female ZinoW we will obtain creamino males ZinoZino and creamino females ZinoW, and also normal males carrying mutation ZinoZ+, and normal females Z+W, Table 6. With a creamino parent male ZinoZino and a normal parent female Z+W, all offspring males will be normal split to creamino ZinoZ+, and all offspring females will be creamino ZinoW, Table 7. With a creamino male ZinoZino and the same mutant female ZinoW, we will obtain 100% creamino offspring Table 8.
http://www.birdbazaar.com/BB-ColorGenetics.htm
Quoted from the website:
Creamino plumage coloration, as well as a fawn, is sex-linked recessive trait. Birds that have this coloration carry ino mutation in a Z sex-chromosome that is usually referred to as “cream-ino". This mutation will visually appear in females because no counterpart gene is present to suppress it. Normal shafttail males Z+Zino are described as being split to ino, a.k.a. split to creamino. Again, if a male Z+Zino is in pair with the normal female, we will obtain only female mutants ZinoW; the other birds will be normal males Z+Z+ and normal females Z+W or normal males split to creamino Z+Zino, Table 5. With a male split to ino mutation ZinoZ+ and a creamino female ZinoW we will obtain creamino males ZinoZino and creamino females ZinoW, and also normal males carrying mutation ZinoZ+, and normal females Z+W, Table 6. With a creamino parent male ZinoZino and a normal parent female Z+W, all offspring males will be normal split to creamino ZinoZ+, and all offspring females will be creamino ZinoW, Table 7. With a creamino male ZinoZino and the same mutant female ZinoW, we will obtain 100% creamino offspring Table 8.