Green Egg Layer With a Single Comb

[ChickyPants]

This isn't so much a question as a statement, lol!

I have a beautiful Easter Egger hen that has some barred rock in her and she has a single comb. Because of the single comb I was prepared for her to lay brown eggs but she lays a lovely blue egg!

Some of her daughters are the spitting image of her while some of them have peacombs like daddy.

I have been breeding Ameraucana/EEs for awhile now and always thought the green egg gene was closely tied to peacombs, so I was very surprised when this popped up!

I just found it interesting and wanted to share.

 

[ChickenCanoe]

Egg color gene/s are unrelated to comb type and lobe color.

 

[Sneebsey]

It's rare for the blue egg gene to separate from the pea-comb gene, but it does happen; Cream Legbars were developed by splitting the genes and keeping only blue egg layers with single combs.

 

[ChickyPants]

Egg color gene/s are unrelated to comb type and lobe color.

Haven't ever gone by lobe colour nor really heard that one but I have always heard that blue egg gene is tied to peacomb!

 

[ChickyPants]

It's rare for the blue egg gene to separate from the pea-comb gene, but it does happen; Cream Legbars were developed by splitting the genes and keeping only blue egg layers with single combs.

I would love to read more about how they developed that breed, would be a good rainy day read. I'm interested to know WHY they specifically wanted single combed birds.

 

[ChickenCanoe]

It's rare for the blue egg gene to separate from the pea-comb gene, but it does happen; Cream Legbars were developed by splitting the genes and keeping only blue egg layers with single combs.

I don't believe it is that rare.
Cornish, Brahmas, Sumatras, Cubalayas, Buckeyes all have pea combs and were never associated with the blue egg gene. Even one variety of RIRs once had pea combs.

 

[ChickenCanoe]

Haven't ever gone by lobe colour nor really heard that one but I have always heard that blue egg gene is tied to peacomb!

Most people associate ear lobe color with egg color (not blue). White lobes = white eggs/red lobes = brown eggs.
However there are a couple breeds with a white earlobe that lay an extremely dark brown egg. Therefor, unassociated.

 

[Sneebsey]

I would love to read more about how they developed that breed, would be a good rainy day read. I'm interested to know WHY they specifically wanted single combed birds.

They were developed over here in the UK by Punnet, amongst others, and I've been trying to find the paper I read regarding the choices made for the standard, however the link is dead so that's that then. You can always try taking a look in the appropriate thread in the General Breed Discussions Forum to see if anyone has shared an article or has a history of the breed for you to read.

I don't believe it is that rare.
Cornish, Brahmas, Sumatras, Cubalayas, Buckeyes all have pea combs and were never associated with the blue egg gene. Even one variety of RIRs once had pea combs.

It's once they come into contact that it becomes difficult to separate them, as they are located close together on the same chromosome. I'm not sure of percentages, but I have read anywhere from 95% up that they are inherited together.