Breeding celadon quail

[KAGs waterfowl]

So, I know there are lines of Celadon (blue egg laying Coturnix quail) that 99% of the hens lay blue eggs and lines that only lay about 30% do, if I breed the line that lays 99% to a line that 30% lay blue eggs, what percentage of the offspring would lay blue eggs?
Also, if you breed the 99% line to a non-celadon line, then breed their offspring together, what would the blue egg layers throw in future generations?
Thank you!

 

[FloorCandy]

Celadon is a simple recessive gene. If a hen lays blue eggs, she has 2 copies of the celadon gene. If a hen has only 1 copy, she lays normal speckled eggs.

The males are more difficult, if you breed a celadon hen to an unknown male, you can count on all offspring carrying 1 copy. If you then cross one of those male offspring to blue laying hens, 50% of the offspring will have 2 copies of the gene, 50% will only be carriers of one copy. With hens you know she’s a full celadon if she lays blue eggs, the only way to know the difference between male celadons and carriers is to breed them to blue layers, and if you get 100% blue laying hens from this cross, he’s pure. But you need a fairly large cross section, like produce 40 hens from him, and if they’re all blue layers, you can feel confident he’s got 2 copies, if even 1 lays normal eggs, he’s only a carrier. The difference in the 30% flock and the 99% flock is how many male carriers vs pure celadon males are in the group, not how much celadon gene percent each individual has, any bird can only be 0%, 50%, or 100% celadon.

Once you do the work and have 1 pure male, you can produce 100% celadons with ease.

 

[KAGs waterfowl]

Good to know. Thank you!

 

[RoosterWhisperer]

Celadon is a simple recessive gene. If a hen lays blue eggs, she has 2 copies of the celadon gene. If a hen has only 1 copy, she lays normal speckled eggs.

The males are more difficult, if you breed a celadon hen to an unknown male, you can count on all offspring carrying 1 copy. If you then cross one of those male offspring to blue laying hens, 50% of the offspring will have 2 copies of the gene, 50% will only be carriers of one copy. With hens you know she’s a full celadon if she lays blue eggs, the only way to know the difference between male celadons and carriers is to breed them to blue layers, and if you get 100% blue laying hens from this cross, he’s pure. But you need a fairly large cross section, like produce 40 hens from him, and if they’re all blue layers, you can feel confident he’s got 2 copies, if even 1 lays normal eggs, he’s only a carrier. The difference in the 30% flock and the 99% flock is how many male carriers vs pure celadon males are in the group, not how much celadon gene percent each individual has, any bird can only be 0%, 50%, or 100% celadon.

Once you do the work and have 1 pure male, you can produce 100% celadons with ease.

So, I know there are lines of Celadon (blue egg laying Coturnix quail) that 99% of the hens lay blue eggs and lines that only lay about 30% do, if I breed the line that lays 99% to a line that 30% lay blue eggs, what percentage of the offspring would lay blue eggs?
Also, if you breed the 99% line to a non-celadon line, then breed their offspring together, what would the blue egg layers throw in future generations?
Thank you!

Cute pfps! I wish I had quails!