are there blue gene gold jack dempseys?

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J

Jory

Feeder Fish
MFK Member
Apr 1, 2008
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las vegas, NV
has anyone ever even tried?
and if you did, would the offspring of a gold BGJD and a EBJD look like regular electric blue jacks?

all comments and replies appreciated :)
 
It all depends on the "blue gene" and the "gold gene".
- If they are alleles, you'll never have a blue gene gold, or a gold gene blue.
- If they are not alleles but are closely linked, it would be doable but the first step (getting a crossover) would be extremely difficult.
- If they are unlinked, we'll see "gold blue" very soon. Multiple people have made the cross between gold and EBJD.
 
well i believe the gold gene is from them being amelanistic, and the blue gene most certainly is not. so i could see this cross being made i guess. but why hasnt it?
 
Jory;3163258; said:
well i believe the gold gene is from them being amelanistic, and the blue gene most certainly is not. so i could see this cross being made i guess. but why hasnt it?
Click to expand...

Speculations my friend. You could very well be right, but there can be multiple alleles of the same gene that give you distinct phenotypes. The pigmentation of some flowers is a good example - white, yellow, red, purple....

They don't have to be alleles of the same gene either. If they are in the same pathway but one is epistatic of another, you won't have blue gold either...

Like you implied, both gold and blue have been around long enough. If it doesn't happen in the next few months, chances are that it's not possible...
 
I think its possible.. just takes time to get the specific fish and hope they dont die on you....

So far i have yet to encounter a real Gold gene and most EBJDs or blue gene i've seen are not quite so strong in terms of growth...

Plus good EBJDs are expensive and hard to come by...
 
it seems someone will have to test this theory.
 
If you crossed an EBJD with a gold dempsey you'd get....100% wild type looking offspring that would all be heterozygous for both traits. It's when you breed the F1 generation together that you'd get some interesting results.

IF the mutations are un-linked and on different alleles you'd expect to see a 9:3:3:1 ratio of wild type, blue, gold, and a small 1/16th of the spawn should be both EBJD and gold.

Who knows!
 
OH MAN!! I cannot wait!!!
 
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