Quick Summary
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Phenotype: The albino mutation produces a white coat with blue eyes.
Mode of Inheritance: Autosomal recessive
Alleles: N = Normal/non-albino, A = Albino
Breeds appropriate for testing: Tonkinese, Siamese, blue-eyed white cats of other breeds
Explanation of Results:
- Cats with N/N genoytpe will not be albino and cannot transmit this albino variant to their offspring.
- Cats with A/N genotype will not be albino, but are carriers. They will transmit this albino variant to 50% of their offspring. Matings between two carriers are predicted to produce 25% albino kittens.
- Cats with A/A genotype will be albino, and will transmit this albino variant to all of their offspring. Matings between two A/A genotype cats are predicted to produce all albino kittens.
Sample Collection:
Cat DNA tests are carried out using cells collected from your cat's cheeks and gums using household cotton swabs.
The cat DNA submission form with instructions, pricing, and a place to tape the cotton swabs can be printed from your home computer after signing up for a MyVGL account and placing an order. Test kits are not mailed.
Step-By-Step Instructions:
1.
Purchase regular household cotton swabs for cat DNA collection (the cotton swabs can be purchased at a pharmacy or drug store)
2.
Use both ends of the two cotton swabs for a total of four swabs.
3.
Collect the DNA sample by swabbing the cheek and gums of the cat.
4.
After swabbing the cheek and gums, tape the cotton swabs to the bar-coded submission form printed from your MyVGL account.
Feline albinism is a rare inherited condition characterized by a lack of pigment resulting in cats with a white coat and blue eyes.
Two mutations in the Tyrosinase (TYR) gene produce the Burmese (sepia), Siamese, and mink colorpoint coat and eye color phenotypes in cats. A rare mutation in TYR (c.936delC) causes a shortened form of the TYR protein and produces an albino phenotype of a white coat with blue eyes. The albino mutation is recessive to the Burmese (cb) and Siamese(cs) mutations following the allelic series C>cb=cs>ca.