Hair Length

L Locus, long hair, short hair


The L locus affects the length of the hair coat of dogs due to a DNA variant in the FGF5 gene. The variant causes that a hair growth in the follicle is not stopped, so dogs develop longer hair. Long hair is inherited autosomal recessively – dogs with long hair must inherit this variant on both alleles of the gene.

For breeds

Czechoslovakian Wolfdog, German Shepherd, Saarloos Wolfdog, ...other breeds,

Gene and tested variants

FGF5, c.284G>A

49 €

49 €