Dr. van Haeringen Laboratorium B.V.

H681 Curly Coat 2


Curly coat is a common trait in many dog breeds. In 2009 a mutation in exon 2 of the Keratin 71 gene (KRT71) was detected which causes the curly coat phenotype. Screening of this variant in various dog breeds revealed however, that it does not explain the curly coat in all breeds. Continued research lead to the detection of a second curly coat variant in exon 7 of the KRT71 gene. This mutation is fixed in Curly Coat Retrievers and segregates in some other breeds. Additionally, there is some indication that the variant possibly represents a genetic risk factor for some forms of follicular dysplasia in dogs.

Test specific information



Most coat colours and coat types are usually visible directly after birth.

Turnaround time

The Turnaround Time (TAT) depends on various factors, such as the shipment time of your sample to the test location, the test method(s) and whether the tests are performed completely or partially by a Partner Lab or Patent owner.

The TAT of tests performed at our facilities is normally 10 working days after receipt of the sample at the testing laboratory (VHL, VHP or Certagen). For tests performed by a Partner Laboratory (so-called "partner lab test") or patent owner, the TAT is at least 20 working days after receipt of your sample. Because the shipment time to our Partner Labs or patent owner may vary due to factors we cannot influence, the mentioned 20 working days are therefore an estimate.

Sometimes it is necessary to re-run your sample. We call this a retest. In that case, the TAT will of course be extended.

Location of disease or trait

Genetic factors influencing coat colours and coat types are usually visible on the outside of an individual. Several factors may be hidden by the external variation.

Breed dependence

This DNA test is available for the following breeds: Bichon Frise, Chesapeake Bay Retriever, Curly-Coated Retriever, Irish Terrier, Lagotto Romagnolo (Romagna Water Dog), Mudi, Poodle, Spanish Water Dog. Additional information is available in the Frequently Asked Questions (FAQ).

Sample type

For this DNA test we accept the following materials: Blood EDTA, Blood Heparin, Semen, Swab, Tissue. Please contact Dr. Van Haeringen Laboratorium if you wish to submit other material as listed.


Coat colours and coat types are based on many genetic factors. For each factor, a separate test result will be returned.


Various genetic factors influencing coat colour and coat types are inherited in a dominant or recessive mode. Coat colours are influenced by a large number of genetic factors.

Severity of Disease

Factors influencing coat colour and coat types are usually not related to diseases.

Code H681

Curly Coat 2

€ 50,94 (Incl. 21% VAT)
€ 42,10 (Excl. VAT)