Table 1.

Genotypes at SOD1:c.118 and A allele frequencies for breeds with at least 50 tested members.

Breed	Number Tested	Genotype			A Allele Frequency	Breed	Number Tested	Genotype			A Allele Frequency
		G/G	G/A	A/A				G/G	G/A	A/A
Wire Fox Terrier	79	1	7	71	0.94	Borzoi	787	548	209	30	0.17
Pembroke Welsh Corgi	3,209	220	898	2,091	0.79	English Springer Spaniel	127	97	17	13	0.17
Boxer	3,934	500	1,177	2,257	0.72	Border Collie	80	63	7	10	0.17
Cavalier King Charles Spaniel	73	10	27	36	0.68	French Bulldog	87	64	18	5	0.16
Pit Bull Terrier	53	23	6	24	0.51	Irish Setter	57	42	12	3	0.16
American Water Spaniel	91	22	46	23	0.51	Shiloh Shepherd	221	161	53	7	0.15
Australian Shepherd	113	57	20	36	0.41	Great Pyrenees	85	68	10	7	0.14
Collie	151	73	39	39	0.39	Saint Bernard	78	60	15	3	0.13
Soft Coated Wheaten Terrier	88	45	18	25	0.39	Chinese Crested	53	40	13	0	0.12
Hovawart	64	31	17	16	0.38	Staffordshire Bull Terrier	52	46	1	5	0.11
Bernese Mountain Dog	2,413	941	1,112	360	0.38	Mastiff (English Mastiff)	114	93	19	2	0.10
Chesapeake Bay Retriever	2,344	958	1,034	352	0.37	Norwich Terrier	74	60	14	0	0.09
German Shepherd Dog	6,458	3,155	1,884	1,419	0.37	Australian Cattle Dog	61	53	5	3	0.09
Tibetan Terrier	69	32	24	13	0.36	Coton de Tulear	110	94	16	0	0.07
Kerry Blue Terrier	558	254	223	81	0.34	Labrador Retriever	475	433	19	23	0.07
Czechoslovakian Wolfdog	52	24	21	7	0.34	Nova Scotia Duck Tolling Ret.	59	52	6	1	0.07
Cardigan Welsh Corgi	544	271	194	79	0.32	Poodle‐Standard	533	468	60	5	0.07
Pug	382	202	113	67	0.32	Beagle	57	52	3	2	0.06
Jack Russell Terrier	60	36	10	14	0.32	Belgian Malinois	101	92	6	3	0.06
Bloodhound	264	125	117	22	0.30	Tenterfield Terrier	66	59	7	0	0.05
Canaan Dog	169	87	67	15	0.29	Siberian Husky	97	92	3	2	0.04
Rhodesian Ridgeback	2,645	1,381	1,023	241	0.28	Dalmatian	180	172	4	4	0.03
Kuvasz	75	46	19	10	0.26	Golden Retriever	334	322	2	10	0.03
Welsh Terrier	72	41	25	6	0.26	Rottweiler	76	73	2	1	0.03
Komondor	55	32	22	1	0.22	Doberman Pinscher	55	54	0	1	0.02
Shetland Sheepdog	58	41	10	7	0.21	Alaskan Malamute	61	60	0	1	0.02
Tamaskan (Aatu Tamaskan)	59	40	17	2	0.18	Newfoundland	62	61	0	1	0.02
Puli	123	87	29	7	0.17	Rat Terrier	63	62	1	0	0.01

Breed (and number tested) for 9 breeds represented only by G/G homozygotes: Weimaraner (112); Great Dane (84); Field Spaniel (75); Basenji (59); Akita (58); English Cocker Spaniel (56); Greater Swiss Mountain Dog (53); Bouvier des Flandres (51); Dachshund (50).