A+ - Bay, dominant to self. Restricts eumelanin to the points of the horse.
a - Self, recessive to bay. Allows eumelanin to be expressed over entire body.

Cr+ - Normal color, incomplete dominant to crème. This means it takes two copies of the C gene to have normal color.
cr - Cream.
  Cr+/cr will make bay into buckskin, black into smokey black and chestnut
  into palomino.
  cr/cr will make bay into perlino, black into smokey cream and chestnut
  into cremello.

Ch - Champagne, dominant to non champagne.
  Ch will make bay into amber champagne, black into lilac champagne
  and chestnut into buff champagne.
ch+ - Non champagne, recessive to champagne.

D+ - Dun, dominant to non dun. D will make bay into zebra dun, black and
  smokey black into grulla, chestnut into red dun, buckskin into yellow dun,
  palomino into palomino dun, and the cream colors into linebacked versions.
d - Non dun, recessive to dun.

E+ - Extension, dominant to recessive red. Allows eumelanin in hair shaft.
e - Recessive red, recessive to dark.

G - Grey, dominant to non grey.
g+ - Non Grey, recessive to grey.

Rn - Roan, dominant to non roan.
rn+ - Non roan, recessive to roan.

Z - Silver, dominant to non silver.
z+ - Non silver, recessive to silver.

A few helpful hints:

G - Grey masks all other colors.
A horse with one or two G alleles will be grey no matter what.
A G/G horse will only have grey foals.

e/e - Recessive red (commonly called chestnut) will mask bay, black, and silver.
An E+/E+ horse will never have a chestnut/palomino/cremello foal.

Pattern information:

To - Tobiano
t - Not spotted.

Ov - Frame Overo. Lethal in its homozygous (Ov/Ov) form
o - Not spotted.

Lp - Appaloosa Spotted aka Leopard Complex
lp+ - Not appaloosa spotted

Sa1 - Sabino. In its homozygous form (Sa1/Sa1) it results in Maximum Sabino which can result in a nearly all white to all white horse.
sa1+ = Not sabino

Spl - Splashed White.
spl+ - Not spotted.

Genetic Disorder:

I have included a generic unnamed genetic disorder in the game. This disorder is an autosomal recessive trait which means that it occurs equally in males and females and it takes two copies of the gene to be affected. Carriers will not have any "symptoms" so the only way to find them is to DNA test the horses. Affecteds will be affected in the show ring. Their scores will be cut in half making it impossible to show them to any legitimate wins. The point of adding this disorder to the game was twofold. One to help educate about genetic disease and how to "breed through them" to a clear line and two to add challenge to the game. When you DNA test your horses you will get one of three results (provided all is working as it should LOL): Clear, Carrier or Affected. It is each individual breeders choice how they go about clearing their lines of the disorder and there are several methods. One is to discard any carrier or affected but this can cost the breed some valuable genetics for the other inherited traits. One can also formulate a plan to breed through to clears using the carriers or even the affecteds. By utilizing clears to breed to them they are assured of never producing any affecteds and at worst more carriers. Eventually they will be able to produce a clear line that still retains the other desired inherited traits. I hope this gives you some insight into breeding and the choices that must be made as well as making the game more challenging and fun.

Virtual Pony Rancher

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Tuesday, 22nd August, 2017