Red Pastel Hypo Female..anyone heard of one?

[Randall Turner]

The reason Salmon is not a co dominant mutation is because the visual het (NH) is visually indistinguishable from a homozygous (HH) animal.

Pastel Ball Pythons are a good example of a Co dominant mutation. The visual het form is a washed out brightly colored animal while the homozygous form is even more drastically washed out with even brighter coloration.

Something mentioned is why does it qualify for a dominant even though wild types are produced when (NH) x (NH) are bred. That is because regardless of the trait if the animal isn’t homozygous there will be wild trait genetics from each parent that can be paired producing a normal animal.

Here are the definitions for a dominant gene and codominant.
Dominant:
1: gene that produces the same phenotype in the organism whether or not its allele is identical; "the dominant gene for brown eyes"
2: A gene that is expressed phenotypically in heterozygous or homozygous individuals.

Codominant
Two alleles in a gene pair are each associated with different substance/appearance.
When both substances/appearances appear together in heterozygotes, codominance occurs.

I couldn't find any more thorough codominance definitions. Maybe someone else can.

 

[Paul Kent]

The reason Salmon is not a co dominant mutation is because the visual het (NH) is visually indistinguishable from a homozygous (HH) animal.

Can anyone tell me why that is though? Why does it matter whether or not its visible or not. A super hypo x normal(WT) will still yeild all hypos. Same for a super motley, or a super ball, or a super tiger, etc. The only difference is that you can physically see it. What difference doe sit make?

 

[Randall Turner]

The difference is, thats the definition of the trait. Since the visual het form and the homozygous form are both visually identical it falls under that definition. Pastel balls, motley boas, mojave balls, lesser balls etc etc all have visually different forms of visual het and homozygous so they fall under the definition of codominant.

The main problem with this is the misinformation that is rampant in the hobby, I myself thought and preached that hypos were codominant until someone pointed out the definitions and the way we as a group misuse them.

 

[Paul Kent]

So its a dominant trait?

 

[Randall Turner]

Yes, hypomelanism is a dominant trait.

 

[Paul Kent]

.... that has a "super" form.....

 

[Randall Turner]

The term "super" used with hypos/salmons is just the hobby lingo used instead of using homozygous. So yes.

 

[Paul Kent]

I know. Just making sure we were on the same page.

Well, I feel enlightened. I dont know about the rest of you.

 

[Randall Turner]

To the original poster, I didn't see it mentioned so if it was I apologize. Could the "red pastel" portion be referring to it being from EBV red group lineage? That is a specific line of Pastel that was refined by East Bay Vivarium, such as Pastel Dream, or Keller, or Tudehope.