This test is for the rare Dilution variants d2 and d3 at the D-Locus.
'd2' variant
The D2 locus is another dilution mutation that dilutes coat colour but this mutatoin is only found in the Chow Chow,Thai Ridgeback and Sloughi breeds, which must be tested for both
d1 Locus as well as the d2 Locus mutations for a complete analysis.
You can take advantage of our special offer 'second coat colour test at half price'.
'd3' variant
The D3 locus is another dilution mutation that dilutes coat colour but this mutatoin is only found in the Chihuahua, Pumi (Hungarian Pumi / Pumik), Mudi (Hungarian Mudi) and Italian Greyhound breeds, which must be tested for both
d1 Locus as well as the d3 Locus mutations for a complete analysis.
You can take advantage of our special offer 'second coat colour test at half price'.
For more information about the D1 Locus please click here D Locus
important note
Please note that when you order this test we will only perform the test for the variant that is relevant to your breed. Either d2 or d3
Please note that dilution (blue, lilac, isabella, etc) is just a colour and that it is not known to be associated with any health conditions
Colour Dilution Alopecia (CDA)
There is no test for CDA and there is no evidence that CDA is caused by dilution
CDA is a genetic recessive inherited condition that causes patches of hair thinning or loss and may also include flaky and/or itchy skin. CDA occurs in dilute dogs (homozygous for the dilute gene d/d) in some breeds, however there is no direct link between CDA and the dilute gene, and there is no evidence that the dilute gene is responsible for CDA. It is though that there are other, not yet identified, genetic factors causing CDA in dilute dogs of some breeds. Any colour can carry CDA but symptoms are only expressed in blue and isabella dogs affected by CDA.
breeding
Since CDA is a recessive gene, it can, in theory, be bred out of most lines by breeding dilute dogs with healthy coats. Breeding healthy dilute dogs with healthy dilute dogs is one way to reduce the occurrence of CDA until testing becomes available.
Breeds known to be affected by CDA:
- Bernese Mountain Dog
- Boston Terrier
- Chihuahua
- Chow Chow
- Dachshund
- Doberman Pinscher
- Great Dane
- Irish Setter
- Italian Greyhound
- Mudi (Hungarian Mudi)
- Newfoundland
- Saluki
- Schipperke
- Shetland Sheepdog
- Standard Poodle
- Whippet
- Yorkshire Terrier
