Bò Ghàidhealach · Coat genetics

Highland Coat Colour Calculator

Cross a dam and sire across the five loci that drive Highland coat colour — MC1R extension, PMEL17 dilution, brindle, dominant white, and the bulldog chondrodysplasia gene — to see the probable phenotype of their calf.

Dam

MC1R (Extension)
ED dominant black · E+ wild · e red
PMEL17 (Dilution)
D no dilution · d dilution (dd = dilute)
Brindle
Br brindle (dominant) · br non-brindle
White spotting
W dominant white · w non-white
Bulldog (CD)
CD/CD lethal · CD/+ carrier · +/+ clear

Sire

MC1R (Extension)
ED dominant black · E+ wild · e red
PMEL17 (Dilution)
D no dilution · d dilution (dd = dilute)
Brindle
Br brindle (dominant) · br non-brindle
White spotting
W dominant white · w non-white
Bulldog (CD)
CD/CD lethal · CD/+ carrier · +/+ clear

Predicted calf colours

Probabilities across all loci combined. Add a percentage of any outcome over many calvings.

  • Black75.0%

    Solid black coat. Requires at least one ED or E+ allele.

  • Red25.0%

    Classic Highland red. Requires ee (recessive red) with no dilution.