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English Cocker Spaniel

English Cocker Spaniel genetic profile from the CanVAS Atlas. 39 dogs in the Atlas, heterozygosity 0.29. Nearest relatives, trait loci frequencies, cohort distribution.

What the atlas says about English Cocker Spaniel

In the atlas, the English Cocker Spaniel clusters consistently as English Cocker Spaniel (100% of the 39 dogs here). At the trait loci, FGF4_retrogene_CFA12 runs lower than average (0% here vs 80%); HMGA2 runs higher than the atlas average (100% here vs 56%). Dogs here sit in a relatively sparse region of the atlas, fewer close neighbors than typical.

Low breed predictability score (0.28), individual dogs of this breed vary widely in genetics, suggesting active substructure or sub-population diversity.

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

Genetic dimensions · CanVAS atlas

What the genome says about English Cocker Spaniel

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

Dogs in the Atlas
39Founders
23 from Hayward2016, 9 from Spatola, 4 from Shannon
Genetic diversity
0.29Moderate
Mean heterozygosity across the breed. Ranks 31st most genetically tight of 107 ranked breeds.
Cluster structure
Splits into two genetic sub-populations
Intra-breed RMS distance: 39.43 · likely working/show-line, regional, or kennel lineage split.
Nearest genetic relatives
  1. Weimaraner5.10
  2. Irish Water Spaniel5.95
  3. Petit Basset Griffon Vendeen7.04
  4. Toy Poodle7.09
  5. Maltese7.43
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
IGF184%
HMGA2100%
SMAD289%
LCORL99%
STC271%
ADAMTS1753%
Leg length
FGF4·CFA1889%
FGF4·CFA120%
Coat
RSPO234%
FGF590%
KRT71100%
MC1R71%
Ear set
MSRB387%
Skull shape
BMP351%
SMOC294%
Add your English Cocker Spaniel to the Atlas

You can add your English Cocker Spaniel 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