Trait genes
The 15 loci Sniff reads on every dog
These are the morphology loci behind the per-dog trait calls in the Atlas. Each gene's page shows which breeds carry the variant most heavily, the biological direction of effect, and the methodology behind the call — including the published caveats (FGF4 retrogene polarity, SMOC2 polygenicity for brachycephaly).
Body Size
- LCORL NCAPG/LCORL height locus chr3 chr3 · atlas 83%
- SMAD2 small vs giant strong differentiation chr7 chr7 · atlas 74%
- STC2 size locus chr4 chr4 · atlas 74%
- HMGA2 small breeds enriched at chr10:8-12Mb chr10 · atlas 56%
- IGF1 small breeds enriched for short-allele haplotype chr15 · atlas 55%
- ADAMTS17 height/eye locus chr3 chr3 · atlas 54%
Leg Length
- FGF4_retrogene_CFA12 chondrodystrophy insertion site; not annotated as gene chr12 · atlas 80%
- FGF4_retrogene_CFA18 chondrodysplasia insertion site; not annotated as gene chr18 · atlas 77%
Coat Furnishings
- RSPO2 wirehaired/furnished breeds chr13 · atlas 55%
Coat Length
- FGF5 long-hair allele chr32 · atlas 64%
Coat Curl
- KRT71 curly-coat variant; backbone coverage poor chr27 · atlas 91%
Coat Color
- MC1R recessive red e/e; Ensembl symbol fails; chr5 region chr5 · atlas 62%
Ear Type
- MSRB3 erect vs drop; size-confounded with HMGA2 chr10 chr10 · atlas 80%