DNA testing for von Willebrands disease and color gene testing for presence of e and b alleles. Also mating charts for Schipperke and Labradors.

Explains black and yellow color inheritance in the Labrador.

Description of the two types of hair color, eumelanin and phaeomelanin, found in many mammalian species.

Article describing color genetics of pedigree dogs, including detailed coverage of interactions between Agouti (A), Extension (E) and Dominant Black (K) series.

A Detailed Examination of Coat Color Genetics in the Labrador Retriever.

Introduction to coat color genetics of the Labrador, including a detailed list of all recognized color genotypes and their corresponding phenotypes including Agouti (A) and Brown (B) series.

Detailed article focusing on the alleles of the Agouti (A) series and their effects in dogs. Illustrated with photographs. Also covers Dominant Black (K) series.

Article about color genetics of this breed, with detailed information about the effects of eumelanin and phaeomelanin, photographs and references.

Article about the Dominant Black (K) and Agouti (A) series color genes in this breed.

Article, with photographs, showing the effects of the extension gene in this breed.