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Brittany

Brittany genetic profile from the CanVAS Atlas. 29 dogs in the Atlas, heterozygosity 0.32. Nearest relatives, trait loci frequencies, cohort distribution.

What the atlas says about Brittany

In the atlas, the Brittany clusters consistently as Brittany (100% of the 29 dogs here). At the trait loci, HMGA2 runs higher than the atlas average (100% here vs 56%); SMAD2 runs lower than average (31% here vs 74%). Dogs here sit in a relatively sparse region of the atlas, fewer close neighbors than typical.

Low breed predictability score (0.24), individual dogs of this breed vary widely in genetics, suggesting active substructure or sub-population diversity. Only 29 dogs of this breed in the atlas, modestly sampled.

Closest genetic neighbors in the atlas: Weimaraner, Irish Water Spaniel, Petit Basset Griffon Vendeen, Miniature Poodle, and Irish Setter.

Genetic dimensions · CanVAS atlas

What the genome says about Brittany

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

Dogs in the Atlas
29Founders
19 from Hayward2016, 10 from Spatola
Genetic diversity
0.32Moderate
Mean heterozygosity across the breed. Ranks 68th most genetically tight of 107 ranked breeds.
Cluster structure
Single tight cluster
Intra-breed RMS distance: 35.06
Nearest genetic relatives
  1. Weimaraner5.04
  2. Irish Water Spaniel6.43
  3. Petit Basset Griffon Vendeen6.53
  4. Miniature Poodle6.92
  5. Irish Setter7.22
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
IGF156%
HMGA2100%
SMAD231%
LCORL90%
STC252%
ADAMTS1773%
Leg length
FGF4·CFA1895%
FGF4·CFA1250%
Coat
RSPO240%
FGF541%
KRT7169%
MC1R78%
Ear set
MSRB379%
Skull shape
BMP369%
SMOC267%
Add your Brittany to the Atlas

You can add your Brittany 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