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Coat Color

MC1R

chr5:63,500,000-63,500,000 · UU_Cfam_GSD_1.0

recessive red e/e; Ensembl symbol fails; chr5 region

Atlas-wide
Frequency
62%
dog-weighted average
Breeds with data
208
of 215
Dogs contributing
13,523
CanVAS Atlas
What the frequency means

MC1R chr5. The e/e locus: recessive yellow/red coat. Direction calibrated against e/e breeds (Golden, Irish Setter, NSDTR) vs pigmented controls.

High frequency means

allele common in pigmented/E-locus dominant-black-capable breeds

Low frequency means

allele common in recessive-red (e/e) breeds (Golden, Irish Setter, NSDTR)

Top 10 breeds, highest frequency
  1. Australian Terrier terrier
    100% n=10
  2. Chinese Crested other
    100% n=25
  3. Chinook other
    100% n=11
  4. Chongqing Dog other
    100% n=12
  5. Collie herding
    100% n=20
  6. English Bulldog non_sporting
    100% n=10
  7. Glen Of Imaal Terrier terrier
    100% n=10
  8. Greater Swiss Mountain Dog working
    100% n=16
  9. Irish Terrier terrier
    100% n=8
  10. Japanese Chin toy
    100% n=8
Bottom 10 breeds, lowest frequency
  1. Lhasa Apso Cn non_sporting
    0% n=12
  2. Mastiff working
    3% n=32
  3. Nova Scotia Duck Tolling Retriever sporting
    16% n=52
  4. Qingchuan Hound hound
    17% n=12
  5. Scottish Deerhound hound
    18% n=11
  6. Pug toy
    21% n=31
  7. Cavalier King Charles Spaniel toy
    29% n=102
  8. Irish Wolfhound ancient_landrace
    31% n=286
  9. English Springer Spaniel sporting
    32% n=118
  10. Belgian Malinois herding
    33% n=12
Methodology

Frequency is measured at the typed-backbone 5:63544121 on chr5, 63.5 Mb (44 kb from the gene body). Alleles T/C. Coordinates from manual position (Ensembl symbol failed). Per-breed frequencies are computed across all CanVAS dogs labelled with that breed (missing genotypes excluded).

How to cite this page

The per-breed allele frequencies on this page are derived from the open Sniff Atlas v1.0.1 (Gehring 2026, doi:10.5281/zenodo.20566358, CC-BY 4.0). The underlying genotype substrate is CanVAS (Brundage 2026, doi:10.64898/2026.04.13.718238). Full citation formats including BibTeX, RIS, and CITATION.cff at sniff.world/cite.

Last updated
Sources: Sniff Atlas v1.0.1 (doi:10.5281/zenodo.20566358) · CanVAS (Brundage 2026) · OMIA · Dog10K (Meadows 2023)