New Breed????????????????

[JacinLarkwell]

Is it a recesisve gene? it seems that all 5 of these new ones have it so hopefully it should maintain but I guess we will find out. what makes it difficult to breed true?

No. The comb has one V gene from the Spitzhauben and one Single Gene from the Rock. So they will all pass down either the V or the Single gene when bred. If bred to each other, you could get V, Singles or more of these

 

[ArchieT]

No. The comb has one V gene from the Spitzhauben and one Single Gene from the Rock. So they will all pass down either the V or the Single gene when bred. If bred to each other, you could get V, Singles or more of these

Ahhhh understood. So as all 5 passed the v gene it is likely that it is the dominant gene. is it something to do with what I learnt about below?

 

[I Love Feather Babies]

I have had a look over the internet to try and find a chicken same shape and same colour pattern but have found it very hard, I bred these chickens from 2 other breeds. If anyone can find a breed that is the same please do tell me. I hope that it is something different. I breed these by accident. My family and I all think that they are very beautiful chickens. The cockerel has a green iridescance to his tail feathers. and if you look closely at the birds on the third photo in large you can see that the black spots are sort of love heart shaped or you could desribe it as buttcheeks as well. I also would like to know if anyone is interested in these birds to see wetherer I should continue to breed them.

Regards,
Archie

View attachment 3351059View attachment 3351060View attachment 3351061

https://tiffytaffy.com/hen-with-hearts/. I found this article. Looks like yours.

 

[JacinLarkwell]

Ahhhh understood. So as all 5 passed the v gene it is likely that it is the dominant gene. is it something to do with what I learnt about below?

The 'Starcombs'(not an official name, it's simply what I call them for ease) would be DD. The Single comb is recessive to practically everything, so that would likely be dd. In this case, that would make the Vcomb DD.

I do not know much at all from comb genetics other than it appears most are incomplete dominant or codominant (I cannot remember which is which on the pink versus the red and white flower example) when mixed with single combs.

So if the 'starcombs' are Dd, it means that about 50% roughly of their chics will hatch the same and the other 50% will be V or Single theoretically. I know it is possible to lock in heterozygous genes some how, but I do not know how

 

[Auntiejessi3]

@nicalandia may be able to help

 

[The Moonshiner]

The 'Starcombs'(not an official name, it's simply what I call them for ease) would be DD. The Single comb is recessive to practically everything, so that would likely be dd. In this case, that would make the Vcomb DD.

I do not know much at all from comb genetics other than it appears most are incomplete dominant or codominant (I cannot remember which is which on the pink versus the red and white flower example) when mixed with single combs.

So if the 'starcombs' are Dd, it means that about 50% roughly of their chics will hatch the same and the other 50% will be V or Single theoretically. I know it is possible to lock in heterozygous genes some how, but I do not know how

You can't lock in heterozygous genes and expect them to breed true for the same heterozygous gene offspring. That's the rub with mixing two breeds and trying to establish the offspring as a breed.
Heterozygous birds don't and won't breed true. Just because I'm a color/pattern guy I'm gonna assume those birds pattern look as they do because of heterozygous genes. You'll never get that pattern to breed true and that's just the pattern let alone any other traits that would be involved in the project.
It would be far easier and achievable to maintain a group of both original breeds and continue crossing them to reproduce the same hybrids and selling those if that's the look the OP is after.

 

[JacinLarkwell]

You can't lock in heterozygous genes and expect them to breed true for the same heterozygous gene offspring. That's the rub with mixing two breeds and trying to establish the offspring as a breed.
Heterozygous birds don't and won't breed true. Just because I'm a color/pattern guy I'm gonna assume those birds pattern look as they do because of heterozygous genes. You'll never get that pattern to breed true and that's just the pattern let alone any other traits that would be involved in the project.
It would be far easier and achievable to maintain a group of both original breeds and continue crossing them to reproduce the same hybrids and selling those if that's the look the OP is after.

But what about walnut combs and green egg laying breeds? Are those not heterozygous genes?

 

[The Moonshiner]

But what about walnut combs and green egg laying breeds? Are those not heterozygous genes?

No. (Simple explanation) It's sets of homozygous genes combining.
Just for egg shells there's a set of genes that are either for blue shells or non blue shells (White). They have to be homozygous for the blue shell gene to reliably produce green shelled egg layers. That's why EEs don't usually breed true for blue or green eggs because they're not homozygous they're heterozygous.
Then there's a whole set of different genes that produce the brown coloring that goes on the top.

 

[JacinLarkwell]

No. (Simple explanation) It's sets of homozygous genes combining.
Just for egg shells there's a set of genes that are either for blue shells or non blue shells (White). They have to be homozygous for the blue shell gene to reliably produce green shelled egg layers. That's why EEs don't usually breed true for blue or green eggs because they're not homozygous they're heterozygous.
Then there's a whole set of different genes that produce the brown coloring that goes on the top.

Oh, okay, I see now. Thanks, my bad

 

[3KillerBs]

So needs to have substantial differences not just colour. I assume pattern is one substantial diffference but it depends. so it is very hard to "create" a new breed.

Yes. Quite difficult.

That's why I refer to my own project as "Silver-Laced Australorp(ish)". I have yet to hatch my F1 and probably won't see anything close to my envisioned results for another 2 years.

Ahhhh understood. So as all 5 passed the v gene it is likely that it is the dominant gene. is it something to do with what I learnt about below?

You can't lock in heterozygous genes and expect them to breed true for the same heterozygous gene offspring. That's the rub with mixing two breeds and trying to establish the offspring as a breed.

This is most easily shown in the breeding of Blue/Black/Splash birds.