Reptile & Amphibian Forums

i know that if you breed mjave to normal, more mojaves.
mojave to mojave, blue eyed luecy

what would happen if you bred luecy to a normal, or mojave?
pastel/spider mojaves, when bred to a normal does the same thing happen? what about when their bred together? a different luecy?
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jake

my addiction:
2 normal ball pythons (lazlo and izzy)
1 amelenistic corn snake (mazy)
0.1 blizzard corn (blizz)

"i know that if you breed mjave to normal, more mojaves."

Correct. A mojave is heterozygous for the gene at the mojave locus. It has one normal copy of that gene and one mutant mojave copy of that gene. Each egg from het X normal has a 50/50 chance of getting the mutant copy so each egg from mojave X normal has a 50% chance of being mojave and a 50% chance of being normal looking with respect to mojave.

"mojave to mojave, blue eyed luecy"

This is a het X het breeding so each egg has a 25% chance of being homozygous for the mojave gene (apparently a leucistic with purplish head), 50% chance of being the mojave appearance (heterozygous for the mojave gene like the parents), and a 25% chance of being completely normal for the mojave gene.

"what would happen if you bred luecy to a normal"

It's looking like the blue-eyed leucistics are homozygous for a group of compatible genes. If these genes are all alleles (different mutations of the same gene) then leucistic X normal can't produce normals or leucistics, only animals like the parents of the leucistic. If both parents where mojave's then it should produce all mojaves. However I don't think this breeding has been done yet to put it to the test. I did see where a lesser X phantom leucistic (karma) produced a mix of lessers and phantoms for RDR so the very limited public information on leucistic breedings so far hasn't disproved this theory.

"or mojave?"

If the leucistic was homozygous mojave then the cross of leucistic X het mojave would produce eggs each with a 50% chance of being leucistic (purple head) and 50% chance of being mojave. If the leucistic was from some other compatible cross the results would vary a little. Say the leucistic was from lesser X Vin Russo. I don't think we've seen this cross yet so I'm just guessing it will be leucistic. Then the leucistic X mojave cross would produce 50% leucistics (we know that both the lesser/mojave combo and the Vin Russo/Mojave combo produce leucistics) but also 25% lessers and 25% Vin Russo. In this theory still no normals but more variety in the non-leucistics.

"pastel/spider mojaves, when bred to a normal does the same thing happen?"

Again talking theory since I don't know if this breeding has been done yet (maybe pastel mojave X normal has by now). Unlike the lesser/mojave/phantom/butter/Vin Russo group I don't think there is any evidence that pastel, spider, or mojave are mutations of the same gene locus. In fact the killer bee proves that pastel and spider aren't the same locus. This significantly changes the outcome. If pastel and spider are both different locus on different chromosomes than mojave then pastel mojave X normal would have a chance of producing both pastel mojave and normal. Same for spider mojave X normal. The chances for each egg would be 25% chance pastel mojave or spider mojave respectively, 25% chance just mojave, 25% chance just either pastel or spider again depending on which combo you where doing, and 25% chance normal.

“what about when their bred together?”

This would be the classic double het cross, just that the genes are both co-dominant so you can see the hets. I’m out of time to figure out all 16 squares but can do it later. The high points are 1/16 leucistic super pastel (how would you tell?) and only 1/16 normal.

"a different luecy?"

Pastel mojave or spider mojave X leucy would be like the mojave X leucy cross above except that a 50% chance of spider would be spread on top. In theory 25% spider leucistic, 25% non spider leucistic, and of the 50% split between the leucistic's parent type(s) half (of each type if two types) would be spiders.

If Pastel and Mojave turn out to be different mutations of different genes on different chromosomes then the genotype odds for each egg from pastel Mojave X pastel Mojave would be:

1:16 Leucistic Super Pastel (could you tell it wasn't just pastel?)
1:8 Leucistic Pastel
1:16 Leucistic
1:8 Mojave Super Pastel
1:4 Mojave Pastel
1:8 Mojave
1:16 Super Pastel
1:8 Pastel
1:16 Normal

It doesn't seem likely that Mojave and Pastel would be alleles (different mutations of the same gene) but of course it's possible. It's less unlikely that they might turn out to be linked by being on the same chromosome but even that is a long shot. Either of those unlikely scenarios would change the above significantly.