Is banana/coral glow sex linked?

[OhhWatALoser]

Please correct me if I'm wrong, there. So what's the evidence for the banana/coral glow gene being sex linked or not?

Hey look at someone thinking for themselves instead of just going with the flow... Short answer is no it is not sex linked, there is a huge misunderstanding of what a sex linked gene is in the hobby.

Lets start with what a sex linked gene actually is, which you are correct, it is a gene that actually lays on the sex chromosome. in reptiles we identify them as Z and W. Males are ZZ and Females are ZW, thus females being the heterozygous once, unlike humans which males are XY and females are XX.

So if we ever do happen to have a sex linked mutation, it can sit on the Z or W:

W-Linked: Females could only have the gene, there would only be a heterozygous form, no supers. Every female born would have the gene, males never would.

Z-Linked: Both females and males could be heterozygous, but the phenotype of females could look different (possibly no normal gene to pair with) Only males could be supers. Male morph or Male super morph x normal female would give normal ratios. Male normal x female morph would give all male morphs and all female normals.

Obviously this is not what we are seeing. We are dealing with an entirely different animal.

As for why there are so many that say it is sex linked, Kevin and Brock who probably bred more CG and Bananas than anyone I can think of, were pretty loud about calling it a sex linked gene and putting down anyone trying to correct them and explain it to them. When someone that big says something you have parrots that repeat it as if their word is gods. I know it seems silly over a simple definition, but thats where we are at right now. I think another problem is what do you actually call it? No one has put together a model that explains the whole male maker female maker thing, so it is hard to call it something else. I just normally refer to it as the banana anomaly.

Oh, and just to clear something up, whether a banana/coral glow is a female or male maker depends on whether their banana parent was male or female, right? If so, what happens if both parents are bananas/coral glows?

Yes and I don't think there is enough breeding data out there to answer this right now. Without knowing how the male maker/ female maker thing works on the genetic level, it's even hard to make a guess.