My new calicoes and the parents

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Actually, I don't think it's recessive. I'm still figuring this out - but between myself, and another guy who has had similar experience, it may be sex-linked dominant.

My male marble bred with a pink (Not het) and almost all the fry are marbles.

My friend's FEMALE marble bred with a pink male - No marble fry at all.

I'll report as soon as I try several other crosses (male to female, etc.)
 
According too greg the guy who wrote that marbled blog, calico is dominant too pink. I am trying too breed a calico/marbled too a pink (she has black specks along her dorsal fin but not sure if she can be called a marbled) right now so we will see if they successfully spawn. But yeah, you will get no calico/marbled if you breed a black and pink together, unless both parents somehow possess the gene.
 
Yes, apologies I assume it was obvious I was talking about calico vs. stripes in terms of recessive vs. dominant. But yes apparently calico is co-dominant when paired with pink. A homozygous calico is fully calico, a het is only partially.

I wouldn't say it's sex-linked dominant tho, or sex-linked co-dominant either, because if it's sex-linked dominant then given that females can also be calico then it must be on the X chromosome, and therefore the male calico can't have produced all calico fries, as the male fries of said pairing wouldn't have had the calico allele. Can't really explain why the female marble and pink male didn't produce any calicoes, save maybe it was just unlucky or as Greg states if it's just het then it's not very clear, and so maybe they looked like pinks when they're actually calicos, but then again they should be the same as the calicos produced from the male calico and female pink.

*Shrugs*

I dunno, but I am pretty sure it's more of what Greg stated in his blog thing.
 
From what I have seen, those two statements are not true, either.
If it was co-dominant, and if a het was partially, then NONE of the fry would have been pink, from my pairing - but a few are fully pink.

Obviously we'll continue to learn more - I will breed the fully pink ones back to each other and see what happens. And, eventually I will replicate both mine and my friend's pairings to see if I get the same results.
 
I am sure that there are multiple genes at work, quite simply because all marbles are pink. There are no "black and white marbles" so to speak. So the pink gene, and then the marble gene, are at work, at the very least.
I'm also pretty sure there may be a sex link in there somewhere given my friend's experience. If it was not sex linked, he would have had at least a few marble fry, not none.

I'll let you guys know of progress - my F1s are not breeding size yet - give them a few more months.
 
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