will gold heterandria f. mix with norm?

hi i was just wonderin if keeping gold and normal heterandria formosa together ok coz im worried that might breed together. if they do what will i get?

The norm will evetually out breed the gold, at the gold gene's would surly be ressive and you would then have to work very hard to get the colour back.

So work as is to different lines. So keep them apar.

Alan

ok thx but what do you mean by them out breeding the gold, do the normal type like to ave more babies more often?

If you want to add some new genes to the golden strain, try breed some of them with the location Fellsmere, Florida collector Finn Larsen. This strain sometimes gives "golden" animals.

With some work that could possible improve the true golden strain.
I know that Duncan got some Fellsmere animals from me a week ago.

Martin Tversted

Hi Martin,

Yes I have them, although I lost one of the females and only have two males and a female, they seem quite a bit darker than the other H. formosa that I have.

Hi Jazzer,its a simple caase of genetics.for every one golg born youoll get 3 normals so kepp them aparprt if you want pure gold otherwise you can expepect the above to happen.Providing you keeep a closed colony then you will always get some gold turning up so dont worrry....I have a tankful.The onll thing ive noticed is that that theyndont produce as often as the normals so keeep an eye on them.Regards,Ian.

thanks ian but im a bit confused now :s what is the gold variety? is it just like a different colour that has formed from the normal type. was the gold originally from the normal fish but they just made a different fish during the years ? if that is the case does rthat mean that gold ones can give birth to norm ones???

I think that is correct Jazzer, the gold form is simply a morph of the original. I don't know what you know about genetics but please forgive me if you know more than what I am about to tell you. If the gold genes are A and are recessive and the normal genes are B and are dominant, when they breeed only fish with genes AA will be gold. Fish with AB and BB will look normal.

If you then cross the fish, then a fish with genes AA crossed with BB, will produce all normal fishes and fish with genes AA and AB will produce a mixture, but the most being normal. Then, if you continue to let them cross, eventually you will have hardly any gold forms.

I hope that helps explain it, there are probably far better qualified people to give advice on genetics and I will try and dig out a piece from Derek Lambert's book which explains it well. If anyone else wishes to add anything, then please do.

ah thx finally science explains everything! but one more question, does that mean a purely gold colony could suddenly have normal babies?

There I am not sure!! If I understand genetics properly, then no, since only homozygous recessive fish (i.e. having two recessive alleles of the same gene) will be gold, therefore matings between two golden fish will only possibly give golden fry. I am sure it is much more complicated than that, but it sounds logical.

If u follow the genetic trend then you should only get gold young.
How ever due to the nature of genetic's you will always get normaly fish from then and these should be removed.

Alan

you will almost certainly get the odd throw back to the wild/normal form.

gee first norms breed more than the gold and now some of the gold babies might result in normal ones, no wonder they outbreed them! how often does this odd normal one appear?

who knows. it could be every generation or it could miss several generations. it all depends on the history of the adults and their genetic make-up.

Genetic logic would suggest that they turn up quite rarely, but it is the fact that things don't follow hard and fast rules that you get different forms anyway, if the out of the ordinary didn't happen then we would still be apes living in trees!!