I am trying to define what it means to have lethal genes in the Manchurin gold Coturnix.

[MobyQuail]

lets use pictures to illustrate the crosses.

"pure" pharoah, brown, wildtype

Wh+Wh+Br+Br+yw+yw+e+e+pi+pi+




crossed with pure golden manchurian

Wh+Wh+Br+Br+YwYwe+e+pi+pi+




always equals?


Wh+Wh+Br+Br+yw+yw+e+e+pi+pi+

X

Wh+Wh+Br+Br+YwYwe+e+pi+pi+

=





Wh+Wh+Br+Br+Ywyw+e+e+pi+pi+

an "italian" a bird with one copy of the fawn gene (Yw), and no tibetan range gene "E"


when you cross the italians back to each other, you get wildtypes= no yellow gene, manchurians= 2 yellow genes and italians= 1 yellow gene

no lethal gene, provided you have a big enough breeding stock to not get dead-ended trying to get the yellow gene homozygous.

 

[Peacerose]

Awesome! Thanks!

 

[laseterlass]

SOOOOOO. Manchurian / Pharoah = Italian. I am going to have to build more cages.......

 

[laseterlass]

So I currently have hatched 25 out of 45 eggs they are 2 weeks old and 1 week old. The eggs listed above do not counter in as in the long run 1 from Cumberland hatched and 0 from Stellars hatched. I have a winter colony with 1 Texas A&M male. 2 Manchurian Males from James Marie and a Jumbo Brown Male from James Marie. The hens are 2 Manchurian from James Marie, a Rosetta tux hen and a mess of pharoah and Italian speckled hens from local people. I know Rosettas chicks 1 rosetta and 3 rosetta tuxs. The rest of the chicks look to be ALL Italian Speckled and Golden Italians. The rosetta babies HAVE to have been fathered by the White male. Right? As the Jumbo Brown would have made babies that looked like Dad. Right? And the Manchurian Males would have made Italian Golds or Speckled. Right?