Genetics

Calico

From Children of StarClan

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Genetics Department
Department Mission
  • To provide genetic information for every character who procreates in game, and to provide genotypes as requested by players.
Genetics Information
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The gene that controls tortoiseshell is the same gene that decides of a cat is going to be Red or Black/Brown. These unusual gene is not paired in all cats as a normal gene, as Toms only carry one copy rather than two. This limits Tortoiseshell, which requires two copies of the gene, to females. If a tom posses tortoiseshell coloration he is subject to a genetic malformation called Klinefelter Syndrome or a sufferer of Chimerism.

It should be noted that cats displaying the "Black/Chocolate" descriptor will use the appropriate gene to decide exactly what displays. This gene is a separate discussion covered in the Discussion of Black, Chocolate and Cinnamon Genetics.

Possibilities

Genes

  • O: Red
  • o: Black or Chocolate

Genotype: Phenotype (Gender)

  • OO: Red (Female)
  • O-: Red (Male)
  • Oo: Tortoiseshell (Female)
  • oo: Black/Chocolate (Female)
  • o-: Black/Chocolate (Male)

Breeding

Red Male (O-) x Red Female (OO)

Red
(O-) Cat
Red
(OO) Cat
50% (O-)
Red (M)
50% (OO)
Red (F)

Black/Chocolate Male (o-) x Black/Chocolate Female (oo)

Black
(o-) Cat
Black
(oo) Cat
50% (o-)
Black (M)
50% (oo)
Black (F)

Red Male (O-) x Tortoiseshell Female (Oo)

Red
(O-) Cat
Tortie
(Oo) Cat
25% (OO)
Red (F)
50% (Oo)
Tortie (F)
25% (O-)
Red (M)
25% (o-)
Black (M)

Black/Chocolate Male (o-) x Tortoiseshell Female (Oo)

Black
(o-) Cat
Tortie
(Oo) Cat
25% (oo)
Black (F)
50% (Oo)
Tortie (F)
25% (O-)
Red (M)
25% (o-)
Black (M)

Red Male (O-) x Black/Chocolate Female (oo)

Red
(O-) Cat
Black
(oo) Cat
50% (o-)
Black (M)
50% (Oo)
Tortie (F)

Black/Chocolate Male (o-) x Red Female (OO)

Black
(o-) Cat
Red
(OO) Cat
50% (O-)
Red (M)
50% (Oo)
Tortie (F)

Click here to see the above breedings in Punnet Squares

References