Horse: Principal horse coat colours and inheritance Flashcards Preview

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Flashcards in Horse: Principal horse coat colours and inheritance Deck (17)
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1
Q

List the principle horse coat codes

A
  1. A
  2. C
  3. E
  4. G
  5. D
  6. W
  7. R
    8.
2
Q

Horse Coat: A

A

Agouti

Distribution of black-coloured hair

3
Q

Horse Coat: E

A

Melanin

  • Extension of red pigments
  • Red
  • Chestnut
  • Sorrel (ee → Black skin with red hairs)
4
Q

Horse Coat: G

A

Exclusion of pigment from hair over time (Greying)

(Dominant)

5
Q

Horse Coat: D

A

Dilution

  • Dominant
  • Causes dun horse colour
6
Q

Horse Coat: W

A

White (Dominant)

  • Unable to produce pigment
  • (WW is embryonic: Lethal)
7
Q

Horse Coat: R

A

Roan

  • Mixed dark and light
  • Black
  • Blue
  • Bay
  • Red roan
8
Q

Horse Coat: C

A

Colour

9
Q

Horse Coat: S

A

Spotting

10
Q

Horse Coat: P

A

Piebald

11
Q

Horse Coat: O

A

Overo

  • Spotted
12
Q

Horse Coat: T

A

Tobiano

13
Q

Basic colours of horses are determined by…

A

W, G, E & A

14
Q

Give the basic horse colours

A
  • Black
  • Bay (brown)
  • Chestnut
  • White
  • Variants: Grey/Roan
15
Q

Give the inheritance of horse colours

A
  • Mendelian inheritance applies
  • Roan: Intermediate/codominant inheritance
16
Q

Eel stripe is seen in…

A

Dun horses

17
Q

Cremello modifier

A
  • Buckskin
  • Cremello (shown)
  • Palomino
  • Perlino