EE/aa :3
black horses:
E gene controls black pigment in hair! all black horses are EE or Ee
bay horses:
E gene and A gene together control bay, the black pigment hair shows on legs, muzzle, ears, eye rims, mane, forelock, and tail. The red pigment (A) controls hair on the body, head, and neck. All bays are EE/AA, Ee/Aa, EE/Aa, Ee/AA
chestnut/sorrel/red:
the A gene controls red pigment, all chestnuts are AA or Aa
Brown: the hypothesized but unproven At gene causes brown, so its a safe bet to use At or Ata for brown.
please note Dapple is NOT genetic, lacing and reverse dapple are the same
there is no such thing as a white horse, only light grey and albino/W gene
homo: AA
herto: aa
Extension: ee
agouti (red): aa
crème: cc
roan: rnrn
dun: dd
pearl: prlprl
silver: zz
champagne: chch
grey: gg
white: ww
tobiano: toto
splash white: splspl
rabicano: rbrb
frame: oo
Leopard Complx: lplp
PATN1: patn-1patn-1
PATN2: patn-2patn-2
Brindle:x
Base color - the solid underlying coat, the three base colors are Chestnut, Black, or Bay
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Cream gene - this is the C gene in horses, it creates the sub colors of the bases. Cream will dilute the Red gene as seen below, but the black is not effected. Here's a quick list and explanation:
cc - the horse has no cream but carries the gene anyway
Cc - the horse has one copy of the cream gene
CC - the horse has 2 copies of the cream gene
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+ cc= no visible cream
+ CCcr = (with bay is buckskin), (with red is palomino), smoky black
+ CcrCcr = Cremello, Perlino, Smoky Cream
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Agouti and Extension genes - this is the A and E genes in horses, it creates the sub colors of the bases. Here's a quick list and explanation:
aa - the horse has no red but carries the red anyway
Aa - the horse has one copy of the red gene
AA - the horse has 2 copies of the red gene
ee - the horse has no black but carries the black anyway
Ee - the horse has one copy of the black gene
EE - the horse has 2 copies of the black gene
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+ aa = no visible red
+ Aa = red is visible but it will not always pass red foals
+ AA = red is visible and it will always pass red foals
+ ee = no visible black
+ Ee = black is visible and limited, and it will not always pass a positive black gene
+ EE = black is visible and it will always pass a black gene
+ A, Ee = Bay
+ aa, E = Black
+ A, E = Dark or Black Bay
+ A, ee = Red
+ a, ee = neither red or black is visible
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Roan gene - this is the Rn gene in horses, it creates the sub colors of the bases. Here's a quick list and explanation:
rnrn - the horse has no roan but carries the gene anyway
Rnrn - the horse has one copy of the roan gene
RnRn - the horse has 2 copies of the roan gene
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+ rnrn = no visible roan
+ Rnrn = is a roan but will not always have roan foals
+ RnRn = is a roan and will always have roan foals
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Pearl gene - this is the Prl gene in horses, it creates the sub colors of the bases. Here's a quick list and explanation:
prlprl - the horse has no pearl but carries the gene anyway
Prlprl - the horse has one copy of the pearl gene
PrlPrl - the horse has 2 copies of the pearl gene
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+ prlprl = no visible pearl
+ Prlprl = is a pearl but will not always have pearl foals
+ PrlPrl = is a pearl and will always have pearl foals
Pearl can interact with the cream gene, when this happens its called a Pseudo-double dillute, this will only effect horses with CCcr or one copy of the cream gene. This can cause a horse to have blue or green eyes!
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Silver gene - this is the Z gene in horses, it creates the sub colors of the bases. Here's a quick list and explanation:
zz - the horse has no silver but carries the gene anyway, Chestnut cant be silver.
Zz - the horse has one copy of the silver gene, the mane and tail are lightened
ZZ - the horse has 2 copies of the silver gene, it will have dapples and a flaxen mane, as well as lightened points
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White gene - W
note - there are no true white horses, simple ones with this gene that makes them unable to have pigment in their skin, basically, like albino
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Grey/Gray gene - GG
will slowly make a horse whiter in color, but they will remain a grey because of their skin, there are no real white horses, only light greys and horses with the W gene (see above)
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Dun gene - DD
often confused with effects of CC gene (buckskin (CC gene) vs yellow dun (DD gene))
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ToTo - Tobiano, always foals tobiano
Toto - tobiano, sometimes foals tobiano
toto - not tobiano, cant contribute to making a tobiano foal unless the other parent is ToTo or Toto
Oo - Overo
oo - not overo
OO - lethal white, can kill a foal
SbSb - sabino horse, always has sabino foals
Sbsb - sabino horse, sometimes has sabino foals
sbsb - not sabino, cant contribute to making a sabino foal unless the other parent is SbSb or Sbsb
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LPLP - un-spotted appy, has snowcap or other forms of blankets without the spots
LPlp - spotted appy
lp/lp n/n.......................Non Appaloosa, will not pass on LP or PATN1 to offspring.
lp/LP n/n.......................Heterozygous LP horses will pass the to 50% (blanket appaloosa).
LP/LP n/n......................Negative for PATN1 (snow cap appaloosa).
lp/lp n/PATN1................Non Appaloosa, will not pass on LP. Will pass on PATN1 50% of the time.
lp/LP n/PATN1................Produces a leopard or a near–leopard pattern.
LP/LP n/PATN1...............Results in a few-spot or near few spot pattern.
lp/lp PATN1/PATN1............Non Appaloosa, will not pass on LP but always PATN1 to offspring.
lp/LP PATN1/PATN1............Produces a leopard or a near–leopard pattern.
LP/LP PATN1/PATN1.............Results in a few-spot or near few spot pattern.
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Copy and Paste Color Guide (credit me and the two organizations at the bottom)
not all colors included
Reds
Chestnut - ee/Aa
Chestnut Tobiano - ee/Aa/Toto
Chestnut Blanket Appaloosa - ee/Aa/lpLp
Chestnut Snow Cap - ee/Aa/LpLp
Chestnut Leopard or Near Leopard - ee/Aa/lpLp/PATN1
Chestnut Near Few Spot or Few Spot - ee/Aa/LpLp/PATN1
Bays
Bay - Ee/Aa
Bay Tobiano - Ee/Aa/Toto
Bay Blanket Appaloosa - Ee/Aa/lpLp
Bay Snow Cap - Ee/Aa/LpLp
Bay Leopard or Near Leopard - Ee/Aa/lpLp/PATN1
Bay Near Few Spot or Few Spot - Ee/Aa/LpLp/PATN1
Blacks
Black - Ee/aa
Black Tobiano - Ee/aa/Toto
Black Blanket Appaloosa - Ee/aa/lpLp
Black Snow Cap - Ee/aa/LpLp
Black Leopard or Near Leopard - Ee/aa/lpLp/PATN1
Black Near Few Spot or Few Spot - Ee/aa/LpLp/PATN1
credit to Animal Genetics Inc and UC Davisif you have any question id be happy to help
