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Norfolk Terrier

Norfolk Terrier genetic profile from the CanVAS Atlas. 32 dogs in the Atlas, heterozygosity 0.22. Nearest relatives, trait loci frequencies, cohort distribution.

What the atlas says about Norfolk Terrier

In the atlas, the Norfolk Terrier clusters consistently as Norfolk Terrier (100% of the 32 dogs here). At the trait loci, FGF4_retrogene_CFA18 runs lower than average (0% here vs 77%); HMGA2 runs lower than average (0% here vs 56%). Dogs here sit in a relatively sparse region of the atlas, fewer close neighbors than typical.

Ranks 6 of 107 on the bottleneck severity scale, among the most genetically contracted breeds in the atlas.

Closest genetic neighbors in the atlas: Norwich Terrier, West Highland White Terrier, Scottish Terrier, Cairn Terrier, and Australian Terrier.

Genetic dimensions · CanVAS atlas

What the genome says about Norfolk Terrier

Computed from the 14,478 research dogs in the Atlas. Methods: technical methodology.

Dogs in the Atlas
32Founders
14 from Shannon, 10 from Spatola, 8 from Hayward2016
Genetic diversity
0.22Tight
Mean heterozygosity across the breed. Ranks 6th most genetically tight of 107 ranked breeds.
Cluster structure
Splits into two genetic sub-populations
Intra-breed RMS distance: 60.21 · likely working/show-line, regional, or kennel lineage split.
Nearest genetic relatives
  1. Norwich Terrier21.26
  2. West Highland White Terrier22.57
  3. Scottish Terrier22.73
  4. Cairn Terrier22.88
  5. Australian Terrier23.16
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
IGF169%
HMGA20%
SMAD261%
LCORL100%
STC269%
ADAMTS1769%
Leg length
FGF4·CFA180%
FGF4·CFA12100%
Coat
RSPO269%
FGF564%
KRT71100%
MC1R100%
Ear set
MSRB358%
Skull shape
BMP369%
SMOC248%
Add your Norfolk Terrier to the Atlas

You can add your Norfolk Terrier right now at /add/ as a Charted star. Or, if you'd rather wait for DNA uploads, leave your email and we'll let you know the moment those open.

Last updated
Sources: CanVAS (Brundage 2026) · CanVAS dimensions data