Color Matrix


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German Shepherd Color BasicsThe Basics of Color

At each locus, a dog carries two genes, one from its sire and one from the dam.

Agouti locus order of dominance: Sable, Black & Tan, Bi-Color, then Black.

These genotypes (gene-pairs) produce these phenotypes (exhibited traits)...
a Sable gene (aw) + another gene = a Sable dog
a Black&Tan gene (as) + a Bi-Color gene (at) = a Black&Tan dog
a Black gene (a) + any other gene = a dog of the other color

A dog of this color (phenotype) can have these genes (genotype)...

Sable (aw)
aw+aw
aw+as
aw+at
aw+a
Black & Tan (as)
as+as
as+at
as+a
Bi-Color
at+at
at+a
Black (a)
a+a



The Color Matrix

This table is designed to illustrate the relative probability of color pattern in a litter when the two genotypes are mated. The offspring genotype is in text, phenotype is color-highlited. White text signifies homogenous (same) genes. Bracketed genotypes indicate a surfaced recessive phenotype in the offspring, different from those exhibited by it's parents.

Phenotype: The exhibited trait
Genotype: Phenotype and its recessive gene
White Lettering: Homogenous Traits (duplicate)
Black Lettering: Heterogenous Traits (differing)
[Brackets]: Progeny's phenotype is different from either parent's phenotype

German Shepherd Color Matrix

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