Sire Dun Perlino on dam Dun Buckskin
In this article, we will explore the genetic possibilities of coat colors for the crossing between a stallion Dun Perlino and a mare Dun Buckskin. Equine genetics is a universe of combinations where dominant and recessive alleles determine the final coat of each individual.
On one side, we have the stallion Dun Perlino. Genetically, it presents the base genotype E/_ A/_ Cr/Cr D/n. The Dun gene acts on the base color, adding the characteristic dark dorsal stripe. In some cases it lightens the body tone and may also produce zebra-like leg markings. This coat is based on Perlino.
On the other side, the mare Dun Buckskin contributes with its genetics based on E/_ A/_ Cr/n D/n. The Dun gene acts on the base color, adding the characteristic dark dorsal stripe. In some cases it lightens the body tone and may also produce zebra-like leg markings. This coat is based on Buckskin.
Quando combinamos esses códigos genéticos, criamos uma matriz de probabilidades. É importante lembrar que o resultado visual (fenótipo) muitas vezes esconde genes recessivos que podem pular uma geração.
The Genotypes Involved
For a horse to have the coat Dun Perlino. it carries specific gene combinations. The possible genotypes for the sire include variants such as: E/E A/A Cr/Cr D/n, E/E A/A Cr/Cr D/D, E/E A/a Cr/Cr D/n, E/E A/a Cr/Cr D/D, E/e A/A Cr/Cr D/n, E/e A/A Cr/Cr D/D, E/e A/a Cr/Cr D/n, E/e A/a Cr/Cr D/D.
As for the dam, being Dun Buckskin, may present in its DNA the alleles: E/E A/A Cr/n D/n, E/E A/A Cr/n D/D, E/E A/a Cr/n D/n, E/E A/a Cr/n D/D, E/e A/A Cr/n D/n, E/e A/A Cr/n D/D, E/e A/a Cr/n D/n, E/e A/a Cr/n D/D.
Understanding the Alleles
To understand the result of this crossing, note the gene sets at play:
- E/ (Extension - Dominant): The Extension gene controls eumelanin (black) production. At least one E allele allows the horse to have black hairs.
- A/ (Agouti - Dominant): The Agouti gene controls black distribution. The A allele restricts black pigment to the points (mane, tail, legs).
- Cr/n (Heterozygous Cream): One copy of the dilution allele. Lightens red pigment to gold (e.g. Palomino, Buckskin).
- Cr/Cr (Double Cream): Maximum dilution. Pink skin, blue eyes (e.g. Cremello, Perlino).
- D/ (Dun - Primitive Gene): Dilutes body color and adds dorsal stripe and leg barring.
Calculated Probabilities
Being the sire Dun Perlino with genotype (E/E A/A Cr/Cr D/n), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele to 100% of offspring, restricting black pigment to the extremities and always transmits the Cream dilution allele (Cr) and has a 50% chance of transmitting the primitive Dun allele (D).
Being the sire Dun Perlino with genotype (E/E A/A Cr/Cr D/D), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele to 100% of offspring, restricting black pigment to the extremities and always transmits the Cream dilution allele (Cr) and always transmits the primitive Dun allele (D).
Being the sire Dun Perlino with genotype (E/E A/a Cr/Cr D/n), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele (restriction) to 50% and the (a) allele (no restriction) to the other 50% and always transmits the Cream dilution allele (Cr) and has a 50% chance of transmitting the primitive Dun allele (D).
Being the sire Dun Perlino with genotype (E/E A/a Cr/Cr D/D), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele (restriction) to 50% and the (a) allele (no restriction) to the other 50% and always transmits the Cream dilution allele (Cr) and always transmits the primitive Dun allele (D).
Being the dam Dun Buckskin with genotype (E/E A/A Cr/n D/n), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele to 100% of offspring, restricting black pigment to the extremities and has a 50% chance of transmitting the Cream dilution allele (Cr) and has a 50% chance of transmitting the primitive Dun allele (D).
Being the dam Dun Buckskin with genotype (E/E A/A Cr/n D/D), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele to 100% of offspring, restricting black pigment to the extremities and has a 50% chance of transmitting the Cream dilution allele (Cr) and always transmits the primitive Dun allele (D).
Being the dam Dun Buckskin with genotype (E/E A/a Cr/n D/n), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele (restriction) to 50% and the (a) allele (no restriction) to the other 50% and has a 50% chance of transmitting the Cream dilution allele (Cr) and has a 50% chance of transmitting the primitive Dun allele (D).
Being the dam Dun Buckskin with genotype (E/E A/a Cr/n D/D), it transmits the (E) allele to 100% of offspring, enabling black pigment production (eumelanin) and transmits the (A) allele (restriction) to 50% and the (a) allele (no restriction) to the other 50% and has a 50% chance of transmitting the Cream dilution allele (Cr) and always transmits the primitive Dun allele (D).
Based on a standard scenario, the statistical chances for foals from this crossing are:
Dun PerlinoOpen Coat ➜ 29,3%
Dun BuckskinOpen Coat ➜ 29,3%
PerlinoOpen Coat ➜ 9,8%
BuckskinOpen Coat ➜ 9,8%
Dun CremelloOpen Coat ➜ 5,3%
Dun PalominoOpen Coat ➜ 5,3%
Dun Smoky CreamOpen Coat ➜ 2,9%
Dun Smoky BlackOpen Coat ➜ 2,9%
CremelloOpen Coat ➜ 1,8%
PalominoOpen Coat ➜ 1,8%
Smoky CreamOpen Coat ➜ 1,0%
Smoky BlackOpen Coat ➜ 1,0%
Want absolute precision?
Genetics is detailed. Knowing whether the animal is Homozygous or Heterozygous completely changes the result. You can run 100% precise simulations by filtering according to the exact genotype of your animal in our App.
Open Rancholi Simulator