About the Colour
A mutation in the MC1R gene (E) causes Amber colouration in the Norwegian Forest Cat.
Two copies of the Amber mutation (e) are required for Amber colouration. Amber colouration depends on the presence or absence of the Orange gene, which isdominant over Amber.
When Orange is not present, cats with the Amber genotype will have Amber colouration. When Orange is present, Amber males will be Red and Amber females will be Amber/Red tortoiseshell or Red.
A mutation in the MC1R gene (E) causes Amber colouration in the Norwegian Forest Cat.
Two copies of the Amber mutation (e) are required for Amber colouration. Amber colouration depends on the presence or absence of the Orange gene, which isdominant over Amber.
When Orange is not present, cats with the Amber genotype will have Amber colouration. When Orange is present, Amber males will be Red and Amber females will be Amber/Red tortoiseshell or Red.
Interpretation of results
Test Result |
Interpretation |
Amber (e/e) |
Has two copies of the Amber mutation (e/e). Cat will have Amber colouration (in the absence of Orange). |
Carrier of Amber (E/e) |
Has one copy of the Amber mutation (E/e). Cat will not have Amber colouration. |
Does not carry Amber (E/E) |
Has no copies of the Amber mutation (E/E). Cat will not have Amber colouration. |
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