Jhoven Genetics
We know what a Jhoven is, and what a Geno is, but how does it work?
Base Coat Genetic Guide
A Jhoven’s coat comes in 6 colors all determined by a string of code.
BB/bb – Brown alleles
GG/gg – Grey alleles
KK/kk – Black alleles
Any mix of these three make up the basic coat code that you see on all Jhoven.
The way the roller works is that it will look at the alleles that the parents have and randomly chooses from the uppercase alleles in the parent’s coat code (Bb,Gg,Kk), favoring any dominant alleles (BB,GG,KK)
Let’s look at an Example:
“BB/Gg/Kk”
A Jhoven with this code could produce a Brown, Grey, or Black coated Jhoven, but it will lean more towards giving the child brown because it has 2 dominant brown alleles.
A Jhoven with “bb/Gg/KK”
Could pass down either their Grey, or Black coat to the child.
Breeding two Jhoven with bb/gg/kk Will always result in the Maush coat color being given. Maush is what happens when there are no dominate alleles present to give to the child.
Rare coat colors, “UU, LL, RR, and YY” are essentially mutations in the coat color that occur randomly when a certain coat code is passed onto the child.
– Blue (UU) – BB/GG/kk
– Purple (LL) – BB/GG/KK
– Red (RR) – BB/gg/KK
– Flaxen (YY) – bb/GG/KK
Breeding 2 Red Jhoven together will give the child the chance to be either Brown, Black, or Red.
Markings Genetic Guide
Jhoven’s markings have been found to be MUCH simpler to understand than the coat colors.
Each marking has a dominate allele (MM) and a recessive allele (nmm)
Let’s take Muzzle for example:
MM/nmm
MM Has 2 Muzzle Alleles
nmm Has 1 Muzzle Allele
If
Jhoven 1 has MM,
and
Jhoven 2 has nmm,
Then the roller only has 3 M’s to pull from to pass onto the child.
Common markings have a higher chance of passing even being recessive as they are common.
Recessive Rare markings have a much harder chance of passing due to rarity.
Grab your Jhoven Pair and see what you get!


