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Brachycephaly

BMP3

chr32:34,766,704-34,793,266 · UU_Cfam_GSD_1.0

short-face candidate

Atlas-wide
Frequency
66%
dog-weighted average
Breeds with data
205
of 215
Dogs contributing
13,813
CanVAS Atlas
What the frequency means

BMP3 chr32. Brachycephaly candidate (Schoenebeck 2012).

High frequency means

allele common in non-brachy breeds

Low frequency means

allele common in brachycephalic breeds

Top 10 breeds, highest frequency
  1. Boston Terrier non_sporting
    100% n=31
  2. Bullmastiff working
    100% n=31
  3. Chow Chow non_sporting
    100% n=17
  4. Dingo Bigdesert ancient_landrace
    100% n=19
  5. Dingo Hybrid ancient_landrace
    100% n=8
  6. Italian Greyhound toy
    100% n=16
  7. Lhasa Apso Cn non_sporting
    100% n=12
  8. Miniature Schnauzer terrier
    100% n=62
  9. Neapolitan Mastiff working
    100% n=12
  10. Old English Sheepdog herding
    100% n=20
Bottom 10 breeds, lowest frequency
  1. Village Dog China ancient_landrace
    0% n=9
  2. English Bulldog non_sporting
    0% n=10
  3. Thai Ridgeback other
    2% n=21
  4. Village Dog Crusade ancient_landrace
    3% n=16
  5. Wire Fox Terrier terrier
    5% n=10
  6. Village Dog Cook Islands ancient_landrace
    5% n=10
  7. Polish Lowland Sheepdog herding
    10% n=21
  8. Village Dog South Africa 1 ancient_landrace
    11% n=22
  9. Feral Dog Chernobyl ancient_landrace
    12% n=153
  10. Village Dog Tajikistan ancient_landrace
    13% n=19
Methodology

Frequency is measured at the typed-backbone 32:33567432 on chr32, 34.8 Mb (9 kb from the gene body). Alleles C/T. Coordinates from ensembl symbol UU Cfam GSD 1.0. Per-breed frequencies are computed across all CanVAS dogs labelled with that breed (missing genotypes excluded). See methodology for the full pipeline.

Last updated
Sources: CanVAS (Brundage 2026) · OMIA · Dog10K (Meadows 2023)