Table Alleles; Effect and Examples
Alleles Effects Examples
Locus A Series Dark-Pigment Pattern
As Dominant Black Labrador
Ay Dominant Yellow Golden Retriever
A Banded pigment in hair Keeshond
asa Saddle pattern Airedale
at Bicolored pattern Doberman Pinscher
a Recessive black German Shepherd Dog
Locus B Pair: Black/Brown Pigment
B Black Labrador
b Brown Sussex Spaniel
Locus C Series: Pigment Depth
C Full color pigmentation Labrador
cch Chinchilla dilution Pug
ce Extreme dilution West Highland White Terrier
cb Comaz (blue-eyed albino) Pekingese
c Albino Pekingese
Locus D Pair: Pigment Density
D Intense pigment density Newfoundland
d Dilute pigment density Weimaraner
Locus E Series: Extension
Em Black mask Pug, Great Dame
Ebr Brindle Greyhound
E Extension Sussex Spaniel
e Restriction Irish Setter
Locus G Pair: Progressive Graying
G Dark color lightens with age Kerry Blue Terrier, Bedlington Terrier
g Uniform pigment Most Breeds
Locus M Pair: Merle Pattern
M Merle or dapple pattern Collie, Shetland Sheepdog, Dachshund
m Uniform pigment More Breeds
Locus S Series: White Pattern
si Solid color(self) Weimaraner, Irish Setter
sn Irish-spotting pattern Basenji, Boston Terrier, Brittany
sp Piebald spotting Bull Terrier
sw Extreme piebald Samoyed, West Highland Terrier
Locus T Pair: Ticking
T Tickled coat English Setter, German Shorthaired Pointer
t No ticking Most Breeds
4 家犬的演化及人关系 Serpell, James A. (1995). The Domestic Dog: Its Evolution, Behavior, and Interactions with People. Cambridge University Press, New York, NY