Learning new cat colour genetics. Mocha, Amber, Copper, and Russet.
Basically, I learnt most of the genetics of cats and some rodents from a book called the Colour Inheritance in Small Livestock by Roy Robinson. Printed 2013.
But new genes have since been discovered. This us part 2
Mocha- Bangkok cats
What is it- more pink than mocha. A brown colour
Genetics- new c gene, (cm), recessive/codominant with other sepia
Notes- codominant with burmese and Siamese Bur-mocha is cbcm, Sia-mocha is cscm
Amber- Norwegian forest cats
What is it- normal cats matures into orange like cat if agouti. Non agouti is silver tabby looking but has black nose and paw pads instead of pink/red nose
Genetics- extension gene (e), recessive
Notes-
first time e gene in cats
Only effects black and blue based cats and their patterns. They are genetically this.
Effects fur only and not skin.
Copper/flaxen/akita- British shorthairs
What is it- chinchilla (ticked) or shell (shaded) colour pushed so far on hair looks gold and white. Has black paw pads and tail tip.
Genetics- dominant Inhibitor gene (silver) + Wide Band + Ticked Tabby (on self makes shaded) and recessive copper gene (cop).
Notes-
British wide band gene,
corin based
New golden gene
Males can become temporarily silver while breeding stud.
Russet- burmese
What is it- starts off tabby and turns to red with little dark. Born with pink paws and pale tail tip unlike real tabby.
Genetics- extension gene (er), recessive
Facts-
Similar to Amber gene
Kittens are larger than normal
Bonus of dominance of hair, ear, tail, limb and eye types.
Hair-
Cat longhair (l) gene recessive
Sphynx gene (hr) recessive
Donskoy (Hrbd) dominant
Lykoi is recessive
Devon rex (re) is recessive
Cornish rex (r) is recessive
Selkirk rex (Se) is dominant
Laperm (Lp) is dominant
Wirehaired (Wh) is dominant
Ears-
Fold ear (Fd) is dominant. usually single.double gene is more severe pain.
Curled ear (Cu) is dominant.
Tail-
Manx is dominant. (All are Mm). As MM is fatal. Lethal gene.
Bobtail (japanese) (jb) Is recessive.
Curled tail- two genes in one. Over Back gene is co-dominant. Curl is recessive.
Limbs-
Munchkin (Mk) is dominant
Polydactyl (Pd) is dominant
Eyes-
Ojos azules (Oj) is dominant.
