The Frizzled Gene Questions

[rodriguezpoultry]

Now that it seems I have a frizzled Langshan, I'd LOVE some help on the genetics part of it.

Does anyone have a link that shows if frizzled is the dominant trait? Will frizzled always show genotypically if the bird is heterozygous? I'm assuming that if a frizzle x frizzle breeding happens, the chicks will be given a double-dose of the frizzle and wind up looking like something the cat dragged in.

I'm just trying to figure out how she is expressing the gene, when the parents are straight-feathered and how best to go about keeping the gene going in the line.

 

[chilling in muscadine]

Quote:
Putting a frizzle X frizzle you will end up with what they call a frazzle.
Putting a smooth X frizzle=50% frizzle
Hope this helps

 

[rodriguezpoultry]

Oh! So it's an incomplete dominant gene? Which means the parents must be homozygous....which means I have a chance of getting another one somehow...right?

 

[amazondoc]

Quote:
No, the parents don't have to be homozygous. In act, in most cases you want to AVOID the homozygous state, because it makes the feathers very brittle and the homozygous bird may end up nearly naked. That's why they call it frazzled (it's also called curly).

There seem to be two genes involved in frizzling -- the frizzle gene itself, and a modifying inhibitor gene. Supposedly, if your flock has the inhibitor gene you CAN breed frizzle to frizzle without getting curlies -- but I've never bred frizzles myself!

 

[rodriguezpoultry]

Oh good Lord, I MEANT heterozygous but was watching a TV show about eye color genetics...well I feel like a retard...LOL

 

[Sonoran Silkies]

That's okay--we all have those moments

 

[Sonoran Silkies]

And what did you learn about eye colour genetics?

 

[rodriguezpoultry]

Apparently not much considering I just used homo as hetero! LOL

 

[Henk69]

In human eyecolor there are roughly 2 genes involved.
The first gene makes brown eyes (dominant allele) or green/blue eyes (recessive).
The second gene makes green eyes (dominant allele) or blue eyes (recessive) if the first gene permits.

 

[Sonoran Silkies]

On a different thread last week, egg shell colour genetics were compared to human eye colour genetics--I thought Rodriguez was part of that discussion, but when I went back & looked, he wasn't.

The analogy given, and what little I know about human eye colour genetics (which is pretty well summed up and expanded upon in your remark, Henk) didn't match very well.