Table 5.3

Breed	Usual Homozygous Genotypes*	Other Alleles Present Within the Breed
Basset hound	BB EE	a^y, a^t S, s^P, sⁱ
Beagle	a^sa^s BB s^Ps^P	E, e
English bulldog	BB	A^s, a^y, a^t E^m, E, e^br S, sⁱ, s^P, s^w
Chihuahua		A^s, a^y, a^s, a^t B, b E^m, E, e^br, e S, sⁱ, s^P, s^w
Collie	BB EE	a^y, a^t sⁱ, s^w
Dalmatian	A^SA^S EE s^ws^w	B, b
Doberman	a^ta^t EE SS	B, b
German shepherd	BB SS	a^y, a, a^s, a^t E^m, E, e
Golden retriever	A^SA^S BB SS	E, e
Greyhound	BB	A^s, a^y E, e^br, e S, s^P, s^w, sⁱ
Irish setter	BB ee SS	A, a^t
Labrador retriever	A^SA^S SS	B, b E, e
Poodle	SS	A^s, a^t B, b E, e
Rottweiler	a^ta^t BB EE SS
St. Bernard	a^ya^y BB	E^m, E sⁱ, s^p, s^w
*Most dogs in the breed are homozygous for these genes; a few individual dogs may possess other alleles at these loci.
Source: Data from M. B. Willis, Genetics of the Dog (London: Witherby, 1989).

Table 5.3: Common genotypes in different breeds of dogs