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K639

The Extension gene (MCR1 gene) controls the production of black and red pigment.

10 working days

Specifications

Breeds

Gene

Organ

specimen

Swab, Blood EDTA, Blood Heparin, Semen, Tissue

Mode of Inheritance

Chromosome

Year Published

General information

The Extension gene (MCR1 gene) controls the production of black and red pigment. The Coat Colour E locus, extension test tests for the genetic status of the E-locus. The E-locus has two variants (alleles). It is presumed that (almost) all cats are fixed for the dominant allele E, they have two copies of the dominant allele E and based on this gene alone could produce both red and and black pigment.

Clinical features

The recessive allele E results in kittens that are born with a black/brown tabby pattern (blue/apricot in dilute cats). As the kittens mature, the black/blue pigment is replaced by yellow resulting in the golden coat coloration seen in adult cats. Originally it was named X Colour, now it is called Amber.

Additional information

References

Pubmed ID: 19422360

Omia ID: 1199

How does it work?

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1. Select your product(s)

Select your single test, a CombiBreed Package or create your own Bundle.

2. Collect DNA sample

Collect DNA material as indicated with our products and send it to our laboratory.

3. Results

We handle your DNA sample with care and provide you with the results.

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