Breeder Question

[lvlyldyuk]

How would I go about breeding a pure line of dt ct butterfly's? if it can be done of course

I have coming on friday a dt male. a ct butterfly female, and a ct butterfly male

your help would be most appreciated, as I have no idea how to do it.

 

[Lady]

well I couldnt really help you with the genetics since I dont really know whats dominant and whats not.....except for double tail...is the double tail a CT or??? if hes a CT DT...then might be a tad easier to cross the CT DT male and the CT ST BF Female...you wouldnt get any single tail on the first time but youd get at least 50% carriers for DT....then you could breed them and youd end up with a 50% carriers again but youd also get a 25% of DT!!

I am not sure as far as coloring goes? Maybe out of luck youd end up with some BF from the mum if you cross them....but I tried to help for as much as I cant help you with...sorry.... Hope I helped a tad though

 

[lvlyldyuk]

thank u

 

[ManyFISH4Me]

well I couldnt really help you with the genetics since I dont really know whats dominant and whats not.....except for double tail...is the double tail a CT or??? if hes a CT DT...then might be a tad easier to cross the CT DT male and the CT ST BF Female...you wouldnt get any single tail on the first time but youd get at least 50% carriers for DT....then you could breed them and youd end up with a 50% carriers again but youd also get a 25% of DT!!

I am not sure as far as coloring goes? Maybe out of luck youd end up with some BF from the mum if you cross them....but I tried to help for as much as I cant help you with...sorry.... Hope I helped a tad though

Actually, if the male DT is a CT, and the female does not carry the DT gene, you wouldn't get any Dt's.
All the fry would carry the DT gene, and breeding any 2 of them would get you some DT, CT Babies.

I don't think you can get a 100% marble spawn. Even if both parents are marble, you will still get some solids.

If you want lots of fish, go for it. But I think it would be hard to sell DT, CT's. There doesn't seem to be much interest in them.

 

[Synirr]

The best way would be to breed a DT butterfly to a CT butterfly, then cross two butterfly offspring from that pairing together. In the F1 you'd get all single tails with various degrees of combing, in the F2 you'd get 75% single tail and 25% DT. You'd end up with ~1/16th DT CTs in the F2, and breeding two of these together would get you 100% DT CTs in the F3. As for the butterfly colouring it's kind of hit-or-miss since it's related to the marble gene, but if you keep breeding butterflies together the more likely you are to get butterfly offspring. DT CTs aren't currently recognised as a official tail type by the IBC, so if you were to show them or something they would probably have to be shown in a special class all by themselves. This may also mean that there's little demand for them, but if they turn out nice I'm sure you'd have no trouble selling them

 

[lvlyldyuk]

Hi

Thanx for info.
really want to try it. and would be great to show them in a class of their own, as they will be special and deserve it,lol

 

[Betta*b*Happy!]

I have a question for you synirr,

Althought I came to the same conclusion, I am lacking the firm understanding of this particular one.

F1 - ddx CC = 100% dC

F2 - dC x dC = 25% dd, 50% dC, 25% CC

So why it is then that of the 25% dd there is 1/16th CT. I know that CT is dom over ST and seing as ST is dom over DT then CT is too. How do you then get the two to work together? Or is CT one of those genes that will show up to varying degrees?

Can you point me to the relevant research please? ta!


lvlyldy - Don't worry about it not being a recognised tail type by the IBC. All that means if that it won't be recognised in one of their shows and seeing as they are an american based internatiol assoc. and you are in the UK, there won't be too many shows to worry about. There will be more interest over here as people will buy bettas for what they like, not what will win shows. Not, of course saying no-one here cares about showing. Plus there are many other associations other that the IBC over here so I wouldn't worry too much about what they will/won't accept.

 

[Lady]

you should try it! I think the whole expierence would be neat as well...I definetly wouldnt mind a nice pair or two..hehe AND if you show them in their own class...no matter what theyd win!

 

[Synirr]

Betta*b*Happy! -- It's not 1/16th out of the DTs that will be CT, it's 1/16th of the total that will be both DT and CT. CT is a recessive trait (though I think of it as incompletely dominant personally, since heterozygous fish often have some combing on their tails). This means that, as per the 3:1 monohybrid ratio, 1/4th of the total will be DT, and 1/4th will be CT. You multiply the two together to get your predicted outcome of DT CTs. 1/4 x 1/4 = 1/16

Here's a good website with info about tail type genetics

And another, woohoo.

 

[Betta*b*Happy!]

Thanks for that synirr,

Both those webs are regular haunts for me!

Dunno where i got the idea of CT being Dominant. So there are three traits at work here, ST, DT and CT? That would be why i got all confused!

Thanks muchly, always seem to loose bubblenest!