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LABOKLIN (UK)| Coat Colours / Length | Dogs| Coat Colour: K- Locus (KB and ky)
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Coat Colour: K- Locus (KB and ky)

Test number: 8145

Please note that this test will only check for the KB and ky alleles. For brindle: we are pleased to announce that from today (01/02/2024) we offer a test for the K-Locus: Brindle (kbr)
Breed
All Dog Breeds .
Description

The K locus plays a pivotal role in coat colour. This locus is a relative newcomer in our understanding of canine colour, and includes traits formerly attributed by some to other genes.

The dominant allele in the series is KB, which is responsible for self-colouring, or solid coloured fur in pigmented areas. This trait was formerly attributed to the Agouti (A) locus as AS, but recent breeding studies had shown this not to be the case.

There are two other alleles, kbr, and ky. KB is dominant to both kbr and ky, while kbr is dominant only to ky. kbr is responsible for the brindle. The recessive allele, ky, allows the basic patterns of the A locus to be expressed. So too does the kbr allele, but with brindling of any tan, fawn, or tawny areas. Any animal with at least one KB allele will be self-coloured.

Any animal with at least one kbr allele, and no KB alleles will be brindled on agouti background (see A locus). Any animal with two ky alleles will show agouti patterns (see A locus). and ky


LABOKLIN can presently test for these two alleles. In some breeds, where no brindle is present, this represents a complete analysis of the locus. An example would be the Pug. In breeds where the breed standard disqualifies all but self-colored dogs, testing for these two alleles is once again all that is needed. Any animal with two KB alleles cannot produce anything except self-coloured offspring. A prime example here is the Labrador retriever. In breeds where many variations are allowed, these tests can help predict the probability of potential litters to include fawn, sable, tawny, tan point, tricolor or recessive black puppies.

NEWS: BRINDLE IS NOW SOLVED….

checkout the following link: K-Locus: Brindle (kbr)

 
Further reading
Coat Colour Inheritance Chartshtml file
Brittany Coat ColoursPDF file
Sample Requirements
Whole blood in EDTA tube (0.5 - 1 ml) or Buccal Swabs.
Turnaround
1 - 3 weeks
Price
Number of Coat Colour Tests on the same dog Price (including VAT)
First Colour test £ 48.00
Each additional colour test on the same dog £ 24.00

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