The Fibroblast Growth Factor 5 (FGF5) determines the hair length. Four mutations in FGF5 have been identified that influence hair length in different breeds. There are breed specific mutations for Ragdolls, Norwegian Forest Cats and Main Coons and an different mutation has been found that influences hair length in all long-haired cat breeds. The Hair Length all breeds test (K466) tests for the mutation that is not breed specific in the FGF5-gene and has two variants (alleles). The mutation can be present in all long-haired cat breeds. The recessive allele results in long hair and the dominant allele results in short hair.
The Hair Length all breeds test encloses the following results:
|
Result Hair Length all breeds test |
Hair Length |
|---|---|
|
M4/M4 |
Long Hair, unless modified by another mutation influencing hair length |
|
N/M4 |
Short Hair, unless modified by another mutation influencing hair length |
|
N/N |
Short Hair, unless modified by another mutation influencing hair length |
