Lakenvelder EE Cross Results?

[nicalandia]

Out of curiosity, do you know if her mother that laid blue eggs have a pea comb?

this is the mother, can't see the comb very well, seems like a small pea comb, perhaps a single comb?

View attachment 1833607.

 

[Labelles Velders]

Out of curiosity, do you know if her mother that laid blue eggs have a pea comb?

The mother is an EE (“Ameraucana”, but actually not) from McMurray Hatchery, so I’d think that she would be homozygous for blue eggs. She has a pea comb.

 

[Frazzemrat1]

problem is, pea comb is dominant, and should have overridden that single comb. Interesting genetics at work here.

 

[Ridgerunner]

The mother is an EE (“Ameraucana”, but actually not) from McMurray Hatchery, so I’d think that she would be homozygous for blue eggs. She has a pea comb.

Since the mother is an EE from McMurray there is nothing to say she is homozygous for the blue egg gene or the pea comb. She could easily be split for both. Due to how close together the Blue shell gene and the Pea comb gene are on the chromosome the two are passed down together about 97% of the time. There is a strong but partial link between the two.

The pea comb gene is a partially dominant gene. If both genes at that gene pair are pea, you get the full effects of the pea comb. If they are split, one is pea and one is not-pea, you should still get an effect from the pea gene but it can be incomplete, the comb can look a little wonky. Sometimes the effect is weak, but usually it is really noticeable.

If you cross a hen that is split for the pea comb gene and the blue shell gene with a rooster that does not have either, the odds of a pullet from that cross laying a blue or green egg is roughly 3% (+ or -) if you cannot see any pea effect. If you see any effect of the pea comb gene the odds are about 97% she will lay a blue or green egg.

Can you post a photo of that pullet's comb from straight ahead so we can get a better look. A photo of the mother's comb could be interesting too if you can get one.

 

[Brahma Chicken5000]

I have a Silkie x Easter Egger hen who lays tinted eggs and has a pea comb. The father was a single combed White Silkie and the mother was an Easter Egger hen who laid blue eggs.

 

[nicalandia]

I have a Silkie x Easter Egger hen who lays tinted eggs and has a pea comb. The father was a single combed White Silkie and the mother was an Easter Egger hen who laid blue eggs.

I guess you are amongst the unlucky 4%

 

[Labelles Velders]

The reason I believe the EE mother would be homozygous would be that if the Hatchery had heterozygous breeders, then offspring could lay white or non-blue/green eggs, which wouldn’t be ideal for their business model as a Hatchery selling blue/green egg layers. However, after reading about this inheritance, I’m not sure if it would exactly work that way.

 

[Labelles Velders]

Since the mother is an EE from McMurray there is nothing to say she is homozygous for the blue egg gene or the pea comb. She could easily be split for both. Due to how close together the Blue shell gene and the Pea comb gene are on the chromosome the two are passed down together about 97% of the time. There is a strong but partial link between the two.

The pea comb gene is a partially dominant gene. If both genes at that gene pair are pea, you get the full effects of the pea comb. If they are split, one is pea and one is not-pea, you should still get an effect from the pea gene but it can be incomplete, the comb can look a little wonky. Sometimes the effect is weak, but usually it is really noticeable.

If you cross a hen that is split for the pea comb gene and the blue shell gene with a rooster that does not have either, the odds of a pullet from that cross laying a blue or green egg is roughly 3% (+ or -) if you cannot see any pea effect. If you see any effect of the pea comb gene the odds are about 97% she will lay a blue or green egg.

Can you post a photo of that pullet's comb from straight ahead so we can get a better look. A photo of the mother's comb could be interesting too if you can get one.

Here are a couple close ups of the offspring’s comb:

The mother has since disappeared (hopefully broody ) but here’s a picture of her last year.

 

[Labelles Velders]

Long time no see, BYC. The results are in! After 8.5 months, another built chicken coop, and some serious comb growing and reddening - My little pullet has FINALLY decided to pop out her first little gem. And it’s blue! I got so excited I hollowed it out and spray lacquered it.