Canine Genetic Heritage Projects
Understanding the biology of the domestic dog
Updated Data for the MDR1 Project .
|
This table lists the percentages of dogs that are affected by the mutation in each breed
Affected dogs in breed
populations with
MDR1-1
|
Breed
|
No.
of Dogs
Tested
|
Super
Sensitive
|
Sensitive |
Normal |
Australian Shepherd
|
179
|
2%
|
30%
|
68%
|
| Australian Shepherd, Miniature |
56
|
4%
|
45%
|
52%
|
| Collie |
287
|
32%
|
46%
|
22%
|
| English Shepherd |
91
|
<1%
|
14%
|
86%
|
| McNab |
35
|
3%
|
29%
|
69%
|
| Old English Sheepdog |
212
|
1%
|
9%
|
90%
|
| Shetland Sheepdog |
214
|
2%
|
17%
|
80%
|
| Silken Windhound |
124
|
1%
|
37%
|
62%
|
| Longhaired Whippet |
89
|
16%
|
52%
|
33%
|
Super-Sensitive = 2 defective copies
Sensitive = 1 defective copy
Normal = 0 defective copies |
The breeds below do not appear to be affected by the mutation. It remains formally possible, however, that the mutation is present, but at a low frequency
| Breeds seemingly
unaffected by
MDR1-1 |
| Breed |
No.
of Dogs
Tested |
Australian
Cattle Dog
|
105
|
Australian
Kelpie
|
109
|
Bearded
Collie
|
136
|
Belgian
Malinois
|
63
|
Belgian
Tervuren
|
104
|
Bernese
Mountain Dog
|
111
|
Border Collie
|
222
|
Borzoi
|
91
|
English
Setter
|
73
|
Flat Coated
Retriever
|
111
|
Greyhound
|
110
|
Italian
Greyhound
|
117
|
Jack Russell
Terrier
|
91
|
Koolie
|
56
|
Labrador
Retriever
|
113
|
Pembroke
Welsh Corgi
|
132
|
Whippet
|
105
|
Note: There have been recent reports on the internet that the mutation has been found in Border Collies.
Return to MDR1 site. |
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