The tabby coat is characterized by a mix of two features: (1) a light background component where individual hairs have light bands and (2) a superimposed darker component where hairs have almost no banding. In mackerel tabbies, the dark component is organised into regularly spaced narrow vertical stripes. The genetic determination of tabby coloration is complicated (and not fully understood), but different mutations in the gene LVRN play a key role in forming the blotched or mackerel tabby coat phenotype.
LVRN
Autosomal dominant
Current data does not indicate that this trait is more common among specific breeds.
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64 genetic health markers
50 genetic trait markers