Question about Genetics

[IslaReina]

I'm trying to learn as much as I can about Leopard Geckos Genetics for when I start to collect more in about 5 years (after college) and also to help people with Morph IDs and just spread the general knowledge about Leos I am doing a lot of research but I have some basic questions that I can't seem to find...

Ok so I know about the RAPTOR and APTOR morphs and what the acronym stands for. If they are Tremper Albino Patternless geckos, does this mean that they are homozygous for Tremper Albino and for Patternless, therefore producing either a Tremper Albino, Patternless, or both?

Super Mack Snows, do they come from two mack snows bred together?

Are snake eyes random, or does a snake-eyed parent have a better chance of producing a snake-eyed baby? I know they are more likely in some morphs.

One last question. On websites where they have geckos for sale, some say that they are co-dominant, let's say for example, one site has a baby labelled Snow Tremper Enigma het raptor male. Does this mean that if I bred it to a female, it would have possible Mack Snow-type offspring and Tremper Albino Offspring? With Enigma patterns? Or will the babies show both traits? And is it possible to get a RAPTOR or do I have to breed it with a female that is also het RAPTOR?

Thanks in advance!
IslaReina

 

[richardrojas]

Let see how can I start. First it is needed to understand what morphs are recesive, dominant or co-dominant. To hatch any of those recesive morph you will need either both parents to have that gene, one parent yo have the gene and the other being het (heterozygous) for the same gene or both parents being het for the recesive gene.
Here are the outputs
both parents having the recesive gene will produce 100% of babies with the same recesive gene
1 parent with recesive gene the other het to the same gene you will have a 50% chance per egg to hatch a babie that will have the recesive gene.
2 parents het for the recesive gene you will have a 25% chance per egg to hatch a babie that will have the recesive gene.

All the dominant genes will pass the gene to their babies. Some of those dominats have a heterozygous and super form like the Super Snow which it heterozygous form is the Mack Snow but since this gene is dominant you only will need one parent to be the heterozygous form of the super to hatch babies showing the heterozygous gene but to hatch the super form you will need both parent at least being heterozygous for the gene.

Answering you other question
a Raptor is a Red (eye) Albino Patternless Tremper ORange, the patternless that it use in this morph is not the Murphy Patternless gene. It is about a patternless stripe. This is the reason why some breeders including Ron T remper called their raptors depending of the body markings like Banded Raptors and Jungle Raptors. To hatched one of these you just need to follow the rules of the recesive genes since raptors are a combination of recesive genes.

Yes you need at least to Mack Snow to hatch a Super Snow with a 25% chance of hatching one with a Mack Snow pair, 50% chance from a SS x MS and 100% chance from SS x SS.

Snake eye are a form of the eclipse gene follow the rule of recesive genes. Also you can find some Blizzards with snake eyes and does not have to do with the eclipse gene. In this case you will have more chance to hatch babies blizzard with snake eyes if both parents are snakes eyes blizzard.

You can look at the leopardgeckowiki.com for more info.

 

[IslaReina]

Thank you for the information about the morphs. I looked at leopard gecko wiki but i found that it has limited information about morphs that weren't better explained on other sites.

Can anyone tell me more about co-dominant morphs and how their genes pass on?

 

[richardrojas]

Codominance is when a dominat gene can be in the presence of another dominat gene. Lets talk about an easy example, if you crossed a pure white carnation with a pure red one you will have a pink carnation. In this case the pink carnation is hybrid. But if you cross white chickens with black chickens you will not get a gray one you just get a black an white chicken in other word both genes are equally domimant and can coexist.

 

[strmckr]

the easiest way to look at co-dominate traits is it can be expressed independent of any other trait present.

where by 50% of all the offspring will also have the trait and 50% will not have it at all.


this is different then recessive traits:

recessive traits pass on to all offspring based on the number of copies of the genetic present in the parents.

heterogeneous genetics aka hets means the animal has 1 copy of the genetic property

a homogeneous means the animal carries two copies of het gene
thus the animal will be expressing the trait.

to show how they work clearly

Reptile Genetics Calculator

with the exception of the following

polymorphic traits: {some will mutate randomly from generation to generation}
{patternless, patternless stripe, jungle,aberrant, striped, revers striped}

and a few other know traits that are dominate, co-dominate and some eye traits not listed but to keep it simple im not listing the ones its missing.