Simple genetics question

[HQexotics]

Two questions I cant seem to find online, even with the morph calculators.

What happens If I breed a Sunglow (Tremper) to a Tremper Albino? The babies will come out Sunglow right? or Tremper albino? Or a mixture between the two?

What happens If I breed a Tremper Albino to a SHTCTB Het Murphy's Pattern-less. The morph calculator said they will be hypos het Murphy patternless but wouldn't it be double het for both traits? Where does the albino form. AKA- recessive trait bred to a het for a different recessive trait. What Happens?

Thanks a lot! I'm planning my breeding for next season. and These morphs are want I want to start on

 

[Neon Aurora]

Well since SHTCT is a line-bred trait, you would probably end up with tremper albinos with varying degrees of orange, decreased spotting, and carrot tails, etc. So they would still be sunglows, but you could probably get better quality(brighter, etc) sunglows by breeding a sunglow to another sunglow.

If you breed a tremper albino to a SHTCTB het patternless, you'd end up with leos with varying degrees of tangerine, decreased spotting, etc. that would be 50% het for patternless and 100% het for tremper albino

 

[indyana]

Yep, what Kirsten said! ^

It's important to realize that all traits/lines are not controlled by a single gene. Anything line-bred/polygenetic is not predictable and cannot be a "het". All the traits in SHTCTB (Super Hypo, Tangering, Carrot Tail, Baldy) are controlled by multiple genes and not linked together at all, so if you mix them up with with the genes of an animal that has none of the traits, you basically dilute those traits. Then, you'll have to line breed over generations to work them back up.

 

[HQexotics]

Well since SHTCT is a line-bred trait, you would probably end up with tremper albinos with varying degrees of orange, decreased spotting, and carrot tails, etc. So they would still be sunglows, but you could probably get better quality(brighter, etc) sunglows by breeding a sunglow to another sunglow.

If you breed a tremper albino to a SHTCTB het patternless, you'd end up with leos with varying degrees of tangerine, decreased spotting, etc. that would be 50% het for patternless and 100% het for tremper albino

Thanks a lot! That is exactly what I inferred would happen with the whole sunglow to tremper crossing because I know that a SHTCT should be treated no different then a dominant normal trait in genetics but wasn't sure about the tremper to het patternless cross Thanks for that! Would you happen to know what this looks like in a punnet square? Or a you tube video? Thanks! Maybe I will watch Sasobek's genetics video again.

 

[Neon Aurora]

Well, I think a punnett square might be a little complicated for SHTCT because we're working with four traits that are polygenic and unlinked. Super hypo, hypo, tangerine, and carrot tail are all traits that are controlled by many different genes that are all unlinked. This means that none of these traits can be treated as a unit. Take Tremper albinos, for example. While the lack of black pigment that makes them albino is not controlled by a single gene, it's controlled by a group of genes that are linked, so can be treated as a unit. You know that you can pass down the Tremper albino traits by treating these genes like a single recessive gene. SHTCT is different because it's line-bred, so it's been refined over many generations of selective breeding. Therefor, it did not come about by a random gene mutation that was able to be passed down as either recessive, dominant, or codominant. Since SHTCT traits are controlled by many genes that cannot be treated like a unit, they aren't passed down like the other dominant and recessive genetic mutations. Instead of getting all the traits or none of the traits(like with a Tremper albino), you get some of them and not others. SHTCs are simply wild-types that have been selectively bred to be more orange and have carrot tails and have reduced spotting.

Technically, I think you would treat each of the four genes(super hypo, hypo, tangerine, and carrot tail) as individual co-dominant traits. So instead of taking over a recessive gene, it combines with it(sunglows). But since they are all individual(unlinked), you would get some babies that express different genes(say, you get one baby that's tangerine and carrot tail but has spotting and you get another baby that has tangerine and no carrot tail).

All in all, if you want to understand how the line-bred traits work, I would read up on linked and unlinked genes, as well as how co-dominant genes behave when crossed with dominant and recessive ones. I've tried to explain it the best I can(I can be a little scatter-brained, so forgive me if it's sort of jumbled).

These are the best punnett squares I can give you:

For tremper to sunglow:

t=Tremper Albino

Therefore, All will be tremper albinos with varying degrees of SHTCT traits.

For tremper to SHTCT het patternless:

t=tremper
T= no tremper gene
P= no patternless gene
p= patternless

Therefore, all will be normals(with varying degrees of SHTCT traits) all het for tremper albino, and half will be het for patternless