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Coat Curl

KRT71

chr27:44,106,603-44,115,840 ·

curly-coat variant; backbone coverage poor

Atlas-wide
91%
dog-weighted average
Breeds with data
208
of 215
Dogs contributing
13,523
CanVAS Atlas
What the frequency means

KRT71 chr27:44.1Mb. Curl. CAVEAT: poorly tagged on the typed backbone - the curl-causing variant in Poodles is a single SNP not well captured at this rep SNP. Frequencies here may not predict curl phenotype reliably.

High frequency means

curly-coat allele common

Low frequency means

straight-coat allele common

Frequency landscape

Where the coat curl variant sits across every breed with data, by and grouped by . Each tick is one breed; a variant fixed in one group and absent in another shows up as a gap. These come from one marker per trait, so read them as a : accurate for most breeds, with real exceptions.

0%50%100%
mixed_unknown3 breeds · mean 98%
sporting19 breeds · mean 92%
other16 breeds · mean 90%
non_sporting22 breeds · mean 90%
toy18 breeds · mean 90%
terrier22 breeds · mean 89%
hound20 breeds · mean 87%
herding16 breeds · mean 86%
ancient_landrace51 breeds · mean 86%
working21 breeds · mean 83%
n = 13,523 dogs · CanVAS Atlas (Brundage et al. 2026) · Sniff Atlas
Allele frequency across 208 breeds with data, grouped by AKC breed group. Each accent tick is one breed (fainter = fewer dogs sampled); the bone marker is the group mean. Frequencies are population-level.
Top 10 breeds, highest frequency
  1. 100% n=532
  2. Gordon Setter sporting
    100% n=59
  3. Havanese toy
    100% n=54
  4. 100% n=52
  5. 100% n=48
  6. Greyhound hound
    100% n=45
  7. Tibetan Spaniel sporting
    100% n=42
  8. French Bulldog non_sporting
    100% n=41
  9. 100% n=39
  10. Shih Tzu toy
    100% n=38
Bottom 10 breeds, lowest frequency
  1. 32% n=42
  2. Rottweiler working
    35% n=183
  3. Border Terrier terrier
    36% n=59
  4. Boxer working
    37% n=192
  5. Giant Schnauzer terrier
    52% n=126
  6. Pug toy
    56% n=31
  7. 57% n=28
  8. Saluki hound
    60% n=26
  9. Finnish Spitz non_sporting
    61% n=22
  10. Papillon toy
    64% n=46

105 breeds with fewer than 20 genotyped dogs are not ranked here. At that sample size a single dog swings the frequency, so the figure is not yet stable enough to compare.

Methodology

Frequency is measured at the typed-backbone 27:43395393 on chr27, 44.2 Mb (55 kb from the gene body). Alleles T/C. 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).

In the reference databases

KRT71 as it is catalogued across the genomics world. Each link is the canonical record, so this gene composes with everything those resources know.

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), and disease associations are grounded in OMIA. 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)