American Staffordshire Terrier
American Staffordshire Terrier genetic profile from the CanVAS Atlas. 11 dogs in the Atlas, heterozygosity 0.31. Nearest relatives, trait loci frequencies, cohort distribution.
What the atlas says about American Staffordshire Terrier
In the atlas, the American Staffordshire Terrier clusters consistently as American Staffordshire Terrier (100% of the 11 dogs here).
Only 11 dogs of this breed in the atlas, modestly sampled.
Closest genetic neighbors in the atlas: Bulldog, Irish Terrier, Rhodesian Ridgeback, Toy Fox Terrier, and American Hairless Terrier.
Genetic dimensions · CanVAS atlas
What the genome says about American Staffordshire Terrier
Computed from the 14,478 research dogs in the Atlas. Methods: technical methodology.
Dogs in the Atlas
11Founders
6 from Spatola, 5 from Hayward2016
Genetic diversity
0.31Moderate
Mean heterozygosity across the breed.
Too few dogs in this breed (<20) to rank.
Cluster structure
Single tight cluster
Intra-breed RMS distance: 39.28
Nearest genetic relatives
- Bulldog16.66
- Irish Terrier17.83
- Rhodesian Ridgeback19.05
- Toy Fox Terrier19.57
- American Hairless Terrier20.39
Top-10 PC corrected Euclidean. Lower = closer.
Trait genetics
Allele frequencies at named morphology loci
Frequency of the alternate allele in this breed at each locus's representative SNP. Methods + caveats in technical methodology.
Body size
| IGF1 | 55% |
| HMGA2 | 68% |
| SMAD2 | 86% |
| LCORL | 96% |
| STC2 | 50% |
| ADAMTS17 | 50% |
Leg length
| FGF4·CFA18 | 73% |
| FGF4·CFA12 | 86% |
Coat
| RSPO2 | 56% |
| FGF5 | 59% |
| KRT71 | 100% |
| MC1R | 77% |
Ear set
| MSRB3 | 56% |
Skull shape
| BMP3 | 55% |
| SMOC2 | 68% |
Last updated
Sources: CanVAS (Brundage 2026) · CanVAS dimensions data