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Stripe/Motley

Jr Nimeskern

Jr Nimeskern

Snake lover for lifer
what is the genetic makeup of a stripe/motley??? is it a corn that is showing both stripe and motley characteristics?... I just picked up a Hypo Stripe/Motley at a show... if breed him to a femaleAnery Stripe and a Female Amel Motley... would I get both Motley and Stripes out of the clutches... I know that you cant breed a Stripe and a Motley to get any of them unless they are Het... Im just wondering if Stripe/Motley is a recesive trait like if I breed it to the Anery Stripe would I get all normal Stripes het for Ghost Motley??? Thanks for any of the help

JR Nimeskern
 
Stripe and Motley are alleles. Breeding a striped corn to a motley corn produces animals that are heterozygous for striped and motley, with a non-normal pattern and a plain belly.

Genotypically, a "striped motley" is an animal that is heterozygous for the stripe and motley alleles. Since each of these sit in corresponding locations on the paired chromosomes, there's no 'normal' gene there to offset these two, so they both express themselves.

Some striped motleys show more or less influence from one allele or the other, so I honestly can't tell you if it's possible to know whether it's motley or motley striped based solely on its phenotype.

Assuming yours is the above mentioned genotype:
  • breeding it to a stripe would produce striped and motley striped offspring,
  • breeding it to a motley would produce motley and motley striped offspring,
  • breeding it to another motley striped would produce statistically 25% motley, 25% striped, and 50% being motley striped.
 
Thanks Serp! So what your saying is that if you breed a Stripe and a Motley and if they arent het for the other... example Stripe het Motley... youll still get in the F1 generation Stripe/Motleys??? Now its starting to make a little sense... I always thought that they were both dominant!!! not het for it! but that does make sense... thanks alot once again Serp
 
Not sure if you got it...

Just in case anyone is unclear I'll try putting it another way...

Pretend that Amel and Anery are actually alleles. This means that they sit in the same slot on the chromosome, so on any given single chromosome, there could not be both an Anery and an Amel gene, since only one or the other would exist in that slot.

For the rest of this post, we will pretend that these two are alleles as mentioned above. (In reality they aren't like that, but this makes an easier illustration.)

So, if you had a pair of Amels, a pair of Anerys, and a pair of Normals that were NOT het, what kind of breeding could you do?

  • Breed the Amel to the normal, and you'd get normals het for amel. Technically, these animals are het for Amel AND Normal, because that's what "het" means: the paired genes (normal and amel) are not the same as each other. Breed these hets together to get some amels, of course.
  • Breed the Anery to the normal. You'd get normals het for Anery. Breed these hets together to get some Anerys.
  • So, given our situation, when you breed one of these Amels to one of these Anerys, what would you get?

    You would get offspring that carried one Amel gene paired with one Anery gene. Would they be Normals?

    No, because the corresponding Normal gene is not present in these offspring to offset the effect of either gene. So you'd actually get offspring that expressed both traits. You'd get something like Snows in that case.

    And, are these "Snow" offspring hets? In fact, they are hets, because remember, "het" means that the paired genes are not the same--Anery is paired off with Amel.

    So, if you were to breed two of those "snows" together, the offspring would be Amels, Anerys, and Snows.

That's not how Amel, Anery and Snow actually work, but it is how the Motley and Striped traits work. :)

Oh, the point is that "motley het for striped" and "striped het for motley" and "motley striped" and "heterozygous motley striped" are all exactly the same thing.
 
Last edited:
Matt L said:
Serp,
So, could say that motley and stripe are co-dominant?
Click to expand...
Yes. Codominant, dominant, and recessive are ways to describe relationships. Motley and striped are codominant to each other and recessive to their Normal counterpart, which is dominant to both. :)
 
Ok I understand that Now... I just dont really know how to redescribe what you said over on words... but I do understand... that illustration with the anery amel and normals helped me out alot... I wonder if dogs are diff then my cornsnakes??? because when you breed them to each other its almost like you dont get normals... they come out all diffrent colors!!!
 
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