Table 2.
ECA7 326 kb mushroom associated haplotype data across breeds. The mushroom associated haplotype was genotyped in the Shetland Pony and four additional breeds.
| Breed/Phenotype | Homozygous Reference | Heterozygous | Homozygous Alternate |
|---|---|---|---|
| Shetland (Mu)1 | 0 | 0 | 40 |
| Shetland (Ch)2 | 14 | 15 | 0 |
| Shetland/3 | 30 | 3 | 0 |
| Miniature Horse/4 | 24 | 4 | 1 |
| Icelandic Horse/4 | 19 | 8 | 2 |
| Quarter Horse/4 | 16 | 6 | 0 |
| Thoroughbred/4 | 16 | 8 | 0 |
1 Mushroom Shetland Ponies. 2 Chestnut Shetland Ponies. 3 These samples were used to estimate the frequency of the mushroom associated haplotype in the Shetland Pony. 33 unrelated Shetland Ponies were investigated and coat color phenotype of this sample set was not considered in this analysis. 4 Unrelated horses from four additional breeds were used to determine if this haplotype was present in other breeds and to help identify horses that that could aid in prioritizing putative causal variants.