Is this right?

[Katie]

Whoops! I accidently put this post in the wrong forum. I got it in the right one this time though!

My oldest corn (normal het bloodred) is a yearling. I am getting 3 hatchlings in the next couple of weeks (normal, and 2 normal het amels). I am also thinking about purchasing a snow and an anery hatchling.

So this is what I would have by the end of the summer:

0.1 normal het bloodred
1.1 normal het amel
0.1 normal
1.0 snow
0.1 anery

The way I worked this out in my head was that in 3 years I could:
- breed the snow and the anery and get anery het amel
- breed the snow and the female het amel and get 50% amel het anery and 50% normal het snow
- breed the normal het amel to the normal and get some normals with a few het for amel

Then I could just breed the normal het amel to the normal het bloodred and have normals with a few het for amel.

Thos are the results I got from the progeny predictor. Are these right? They don't look right to me somehow but I'm not very good at this so I thought I'd better ask the experts.

Thanks in advance.

 

[Darin Chappell]

I'm certainly no expert, but assuming that the only hets in the mix are those you've mentioned, then you're right on in your assessments.

Have fun!

 

[Kevin M]

Look's like your on the right track to me Katie. Only the normal het amel x normal het bloodred has me a bit boggled. From that pairing you'd get all normals, some of which would be het blood, het amel and some het bloodred & amel. But you'd have no way to tell?

Anyone care to verify?

 

[Darin Chappell]

The problem with breeding animals het for bloodred to non-blood reds is that bloodred is not a simple recessive gene. It appears that it may very well be a combination of multiple simple recessive genes, but getting those genes to fall together in the right order is difficult to do when you are breeding hets together.

When you breed a het to a wild type, surely some of the traits can be expected to be passed on to the next generation, but which ones? And, if they are passed on, how would you ever identify them as such?

For these reasons, I did not say anything about the bloodred genes showing up in Kat's produced hatchlings. There is simply no way to verify what she would have there, given the genetics with which she has to work, and even if she could prove it out, there is no telling which of those combined het genes would be passed down.

Darin

 

[Kevin M]

Thanks for the clarification Darin.

 

[Katie]

Thanks guys, I hoped I was on the right track. Well at least I'm getting better at this.

And Darin, thanks for clarifying the bloodred thing. That's been explained to be before just the way you said it and that's precisely why I didn't include hets for bloodred in my hatchling predictions.

I can be fairly certain that breeding my het for blood to a blood would produce some bloods (or perhaps near bloods) but if I outcrossed her another generation there are no guarantees about the babies genes. Too bad bloodred isn't a normal gene, it would be much easier to understand!