Table 2:
Distribution of CMAH genotypes of 2145 purpose-bred cats from 31 breeds (16 breeds with n ≥ 8 cats per breed shown; additional 14 breeds shown in footnote)
| Genotypes | ||||||||
|---|---|---|---|---|---|---|---|---|
| Breed | A/A | A/b | b/b | b/b compound1 | A/ac | ac/b | ac/ac | n |
| Abyssinian | 25 | 6 | 1 | 32 | ||||
| Bengal | 136 | 2 | 9 | 1 | 148 | |||
| Birman | 55 | 49 | 2 | 106 | ||||
| British Shorthair | 128 | 189 | 109 | 1 | 2 | 429 | ||
| Chartreux | 2 | 3 | 2 | 1 | 8 | |||
| Devon Rex | 6 | 9 | 3 | 18 | ||||
| Highlander | 13 | 17 | 7 | 1 | 38 | |||
| Maine Coon | 787 | 159 | 10 | 2 | 958 | |||
| Neva Masquerade | 4 | 7 | 1 | 12 | ||||
| Norwegian Forest | 45 | 3 | 48 | |||||
| Persian | 11 | 3 | 1 | 15 | ||||
| Ragdoll | 90 | 61 | 9 | 6 | 24 | 12 | 2 | 204 |
| Savannah | 9 | 1 | 10 | |||||
| Scottish Fold | 6 | 6 | 4 | 1 | 17 | |||
| Siberian | 17 | 8 | 2 | 27 | ||||
| Somali | 6 | 8 | 1 | 15 | ||||
Note: Australian Mist (n = 1), Burma (n = 2), Cornish Rex (n = 2), Exotic Shorthair (n = 6), Oriental Shorthair (n = 6), Russian Blue (n = 6), Siamese (n = 2) and Tonkinese (n = 2) all had the regular A/A genotype (all type A blood). Egyptian Mau (n = 6), Ocicat (n = 3), Savannah (n = 10), Sphynx (n = 4), Thai (n = 5) and Turkish Angora (n = 5) were either A/A or A/b (all type A). In addition, one Thai cat was (A/ac) which still is a type A cat.
1
b/b compound cats are cats with heterozygous genotypes at two loci in CMAH gene (c.179G>T, c.268T>A and c.1322delT) suggesting the genotype b/b.