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Ear Type

MSRB3

chr10:8,219,617-8,397,867 · UU_Cfam_GSD_1.0

erect vs drop; size-confounded with HMGA2 chr10

Atlas-wide
Frequency
80%
dog-weighted average
Breeds with data
199
of 215
Dogs contributing
13,752
CanVAS Atlas
What the frequency means

MSRB3 chr10:8.2Mb. Ear erectness locus. CAVEAT: generalises well to drop-ear and Spitz prick-ear breeds; less reliable for bat-eared (Frenchie) or mixed-ear breeds.

High frequency means

allele common in drop-ear breeds

Low frequency means

allele common in erect-ear breeds (Spitz, GSD, Husky, Basenji)

Top 10 breeds, highest frequency
  1. Airedale Terrier terrier
    100% n=18
  2. Belgian Sheepdog herding
    100% n=15
  3. Bloodhound hound
    100% n=18
  4. Borzoi hound
    100% n=22
  5. Boxer working
    100% n=192
  6. Bullmastiff working
    100% n=31
  7. Chesapeake Bay Retriever sporting
    100% n=13
  8. Chinook other
    100% n=11
  9. Chongqing Dog other
    100% n=12
  10. Chow Chow non_sporting
    100% n=17
Bottom 10 breeds, lowest frequency
  1. Village Dog Cook Islands ancient_landrace
    0% n=10
  2. Norwich Terrier terrier
    0% n=14
  3. Norwegian Elkhound hound
    0% n=10
  4. English Bulldog non_sporting
    0% n=10
  5. Pug toy
    2% n=31
  6. German Shepherd herding
    9% n=381
  7. Basenji hound
    10% n=40
  8. Polish Lowland Sheepdog herding
    12% n=21
  9. Village Dog Crusade ancient_landrace
    13% n=16
  10. Toy Poodle toy
    14% n=26
Methodology

Frequency is measured at the typed-backbone 10:8230753 on chr10, 8.2 Mb (inside the gene body). Alleles G/A. 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)