An observation has recently been made on the frequency of the main color genes in the icelandic horse, Iceland. Dr. Ţorvaldur Árnason og Dr. Ágúst Sigurđsson calculated it from all horses that are registered in the Icelandic Horse Database (Fengur). 64.089 of 100.077 horses in Fengur were registered by color.
These are the main results: (A computing procedure for estimating
genotype probabilities at eight individual colour loci in the Icelandic
toelter horse. 49th Annual Meeting of the European Association for Animal
Production. Warsaw Poland, 24-27 August 1998)
The
frequency of the main color genes:
| Color | Number of horses | Percentage (%) |
| Chestnut | 20342 |
31,74 |
| Black | 19259 | 30,05 |
| Bay | 10450 | 16,31 |
| Albino (cremello/perlino) | 64 | 0,1 |
| Palomino | 1892 | 2,95 |
| Buckskin | 751 | 1,17 |
| Yellow dun and bay dun | 3410 | 5,32 |
| Blue dun | 1942 | 3,03 |
| Silver dapple | 1113 | 1,74 |
| Grey | 4866 | 7,59 |
| Tovero | 5388 | 8,41 |
| Roan | 250 | 0,39 |
The frequency of the main color genes:
| E | 37,8% | e | 62,2% |
| A | 19,5% | a | 80,5% |
| C | 96,6% | Ccr | 3,4% |
| D | 4,5% | d | 95,5% |
| G | 3,9% | g | 96,1% |
| Z | 1,4% | z | 98,6% |
| To | 4,3% | to | 95,7% |
| R | 8,2% | r | 99,8% |
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Palomino AND pinto... just imagine how rare this color is. ©-LUKKA
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Silver dapple AND pinto AND blue dun... just imagine how rare this color is. Bifröst from Sólheimum. ©-LUKKA
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