Genes & Alleles

A LOCUS

Genetic Location: Chromosome 2
Genetic Position: 76.83 cM
Gene: ASIP (Agouti Signaling Protein)
MGI Link

Aʸ ~ Agouti Yellow
(Red, Lethal Yellow, Dom Yellow)
Semi Dominant ~ Spontaneous
Documented 1928 ~ MGI Link

Aᵛʸ ~ Viable Yellow
(American Brindle)
Dominant ~ Spontaneous
Documented 1962 - MGI Link

Aʰᵛʸ ~ Hyper Variable Yellow
(Australian Brindle)
Dominant ~ Spontaneous
Documented 1995 ~ MGI Link

~ White Bellied Agouti
(Agouti "Fox")
Dominant ~ Spontaneous
Documented 1928 ~ MGI Link

WILD TYPE
A [or +] ~ Agouti
(Agouti)
Dominant
Documented 1928 ~ MGI Link

aᵗ ~ Black and Tan
(Black Tan)
Other ~ Spontaneous
Documented 1928 ~ MGI Link

a ~ Nonagouti
(Black)
Recessive ~ Spontaneous
Documented 1909 ~ MGI Link

a ~ Extreme Nonagouti
(Extreme Black)
Recessive ~ Radiation Induced
Documented 1956 ~ MGI Link

B LOCUS

Genetic Location: Chromosome 4
Genetic Position: 37.89 cM
Gene: TYRP1 (Tyrosinase Related Protein 1)
MGI Link

WILD TYPE
B [or +] (No Mutation)
Dominant

b-c ~ Brown Cordovan
(Chocolate)
Recessive ~ Spontaneous
Documented 1909 ~ MGI Link

b ~ Brown
(Chocolate)
Recessive ~ Spontaneous
Documented 1909 ~ MGI Link

Bt LOCUS

Genetic Location: Chromosome 4
Genetic Position: 37.89 cM
Gene: ADAMTS20 (ADAM metallopeptidase with thrombospondin type 1 motif 20)
Linkage: Bt-Ca 8.8%
MGI Link

WILD TYPE
Bt [or +] (No Mutation)
Dominant

bt ~ Belted
(Belted)
Recessive ~ Spontaneous
Documented 1945 ~ MGI Link

C LOCUS

Genetic Location: Chromosome 7
Genetic Position: 49.01 cM
Gene: TYR (Tyrosinase)
Linkage: P-C-Fr
P-C 15.57%
C-Fr 20.83%
P-Fr 36.40%
MGI Link

WILD TYPE
C [or +] ~ No Mutation
Dominant

c ~ Albino
(PEW: Pink Eyed White)
Recessive ~ Spontaneous
Documented 1909 ~ MGI Link

c-e ~ Extreme Dilute
(Beige)
Recessive ~ Spontaneous
Documented 1921 ~ MGI Link

c-h ~ Himalayan
(Siamese)
Recessive ~ Spontaneous
Documented 1921 ~ MGI Link

c-ch ~ Chinchilla
(Chinchilla; Sepia)
Recessive ~ Spontaneous
Documented 1922 ~ MGI Link

D LOCUS

Genetic Location: Chromosome 9
Genetic Position: 42.26 cM
Gene: MYO5A (Myosin VA)
MGI Link

WILD TYPE
D [or +] ~ No Mutation
Dominant 

d ~ Dilute
(Blue)
Recessive ~ Spontaneous
Documented 1984 ~ MGI Link

E LOCUS

Genetic Location: Chromosome 8
Genetic Position: 72.10cM
Gene: MC1R (Melanocortin 1 Receptor)
Linkage: Possibly E-Lgh
MGI Link

WILD TYPE
E [or +] ~ No Mutation
Dominant

e ~ (Extension) Recessive Yellow
(Yellow, RY)
Recessive ~ Spontaneous
Documented 1968 ~ MGI Link

Fr LOCUS

Genetic Location: Chromosome 7
Genetic Position: 69.84 cM
Gene: PRSS8 (serine protease 8 (prostasin))
Linkage: C-Fr-P
MGI Link

WILD TYPE
Fr [or +] ~ No Mutation
Dominant

fr ~ Frizzy
(Frizzy)
Recessive ~ Spontaneous
Documented 1952~ MGI Link

Fz LOCUS

Genetic Location: Chromosome 1
Genetic Position: 2.08 cM
Gene: SGK3 (serum/glucocorticoid regulated kinase 3)
Linkage: Fz-Ln 43.65%
MGI Link

WILD TYPE
Fz [or +] ~ No Mutation
Dominant

fz ~ Fuzzy
(Fuzzy)
Recessive ~ Spontaneous
Documented 1952~ MGI Link

Go LOCUS

Genetic Location: Chromosome 5
Genetic Position: 47.77 cM
Gene: FGF5 (fibroblast growth factor 5)
Linkage: W-Go 8.22%
MGI Link

WILD TYPE
Go [or +] ~ No Mutation
Dominant

go ~ Angora
(Angora)
Recessive ~ Spontaneous
Documented 1963 ~ MGI Link

Lgh LOCUS

Genetic Location: Chromosome 8
Genetic Position: Unknown
Gene: Unknown
MGI Link

WILD TYPE
Go [or +] ~ No Mutation
Dominant

go ~ Angora
(Angora)
Recessive ~ Spontaneous
Documented 1989 ~ MGI Link

Ln LOCUS

Genetic Location: Chromosome 1
Genetic Position: 45.73 cM
Gene: MLPH (melanophilin)
Linkage: Fz-Ln 43.65%
MGI Link

WILD TYPE
Ln [or +] ~ No Mutation
Dominant

ln ~ Leaden
(Leaden, Mock Blue)
Recessive ~ Spontaneous
Documented 1933 ~ MGI Link

Mo LOCUS

Genetic Location: Chromosome X
Genetic Position: 47.36 cM
Gene: ATP7A (ATPase, Cu++ transporting, alpha polypeptide)
MGI Link

WILD TYPE
Mo [or +] ~ No Mutation
Dominant

Mo-br ~ (Mottled) Brindle
(xbrindle, European Brindle)
Semi-dominant ~ Spontaneous
Homozygous & Hemizygous Lethal
Documented 1953 ~ MGI Link