MC1R - Melanocortin 1 Receptor
Part I. (reptiles and birds)
Part II.
This gene encodes the receptor protein for melanocyte-stimulating hormone (MSH). The encoded protein, a seven pass transmembrane G protein coupled receptor, controls melanogenesis. Gene mutations that lead to a loss in function are associated with increased pheomelanin (red pigment) production, which leads to lighter skin and hair color.
Ball python
clown
Inheritence: recessive.
wild type and clown
Lesser earless lizard
bleached
Inheritence: unknown.
image source
Little striped whiptail
bleached
Inheritence: recessive.
image source
Southwestern Fence Lizard
bleached
Inheritence: dominant.
image source
Sagus Kul lizard
dark/light (two difference populations)
Inheritence: unknown.
image source
Chicken
extended black (three mutations)
barring (fayoumi)
partridge/brown/buttercup
wheaten
Inheritence: honestly i'm lost. It's complicated, probably mostly intermediate and often epistatic with other genes. Also birchen exists too, they just haven't found the mutation yet, i think? Or it's the same as barring?
extended black, barred (on silver), partridge, wheaten (wild type is like partridge but lighter chests)
Helmeted guinea fowl
melanic
Inheritence: recessive.
image source
Japanese quail
extended brown
Inheritence: intermediate.
tibetan (EB/EB), rosetta (EB/eb)
Chinese painted quail
blue face
red breast
Inheritence: blue face is intermediate with the wild type, red breast is recessive.
blue face (maybe heterozygous?), red breasted with wild type
Turkey
dominant black
black-winged bronze
Inheritence: order of dominance is dominant black > wild type (bronze) > back-winged bronze.
black, bronze, black-winged bronze
Lesser snow goose
blue
Inheritence: additive.
white, intermediate, blue
Red-footed booby
brown
Inheritence: additive.
white, intermediate, brown
Arctic skua
dark
Inheritence: intermediate.
light, intermediate, dark
Ruff
white ornamental feathers on satellite males
Inheritence: lethal dominant (as part of a chromosomal inversion).
feader, satellite and independent
Eleonora's falcon
extended black
Inheritence: dominant.
black, pale (wild type)
Gyrfalcon
white
Inheritence: intermediate.
image source
Barn owl
rufous
Inheritence: intermediate.
rufous and white
Bananaquit
melanic
Inheritence: dominant.
image source
Chestnut-bellied monarch
melanic
Inheritence: intermediate.
wild type and melanic, phenotype variations