Dog Color Genetics: Understanding the Science Behind Your Pet's Coat

Understanding dog color genetics reveals how coat patterns and hues are passed from generation to generation, shaping the beautiful diversity seen in breeds worldwide. Dominant and recessive genes control pigment production and distribution, resulting in colors like black, brown, red, and fawn, as well as complex patterns such as brindle, merle, and tabby. Each color is influenced by multiple genes interacting in intricate ways, meaning even siblings can exhibit dramatic visual differences despite shared parents. While simple Mendelian inheritance explains many common traits, rare mutations and epistatic interactions create unique coats that capture attention and spark curiosity. For breeders and pet owners alike, knowledge of dog color genetics not only deepens appreciation for these animals but also informs responsible breeding and care. Taking the time to understand the genetic foundation behind coat colors enhances both scientific insight and emotional connection to our canine companions. Discover how to predict and celebrate your dog’s natural color traits through genetics—empowering choices for health, heritage, and aesthetics.

Dog Breeder Pro is a web-based software solution for dog breeders, with a range of useful features to help you keep track of pedigrees, waiting lists, test results and more. It also features a new advanced colour and coat genetics calculator that I've helped to design, so you can get detailed predictions for litters before you breed. Predicting the coat colors of dogs is can be tricky, and genetics can be hard to understand so we've tried to break it down here for you!

The Dog Color Genetics Database DogColorGenetics.com is an educational resources providing detailed color genetics on over 150 different breeds of dogs. Find Your Breed. Learn all you need to know about coat color genetics in dogs with VCA.

Get expert advice from VCA Animal Hospitals to keep your pet healthy and happy. Dog Color Genetics Summary: Genes & Alleles Overview This page is a quick reference to show you the possible alleles at each locus. Summary A list of variants and genes affecting coat colors and patterns in dogs: B locus The B locus determines if a dog has black or brown eumelanin.

B: Black Eumelanin b *: Brown Eumelanin. The Dog Color Genetics Calculator functions by using Mendelian inheritance principles across 21 loci to calculate potential coat color outcomes. Each locus represents a specific gene that affects pigmentation, pattern, dilution, or modifiers in a dog's coat.

Understanding dog genetics isn't the easiest thing to do, we've tried to break it down to make it as simple as possible so you can easily learn! Canine Coat Color and Type Background Mammals have two pigments that are the basis of hair color: eumelanin (black) and phaeomelanin (red or yellow). One of the genes involved in the production of these pigments in many species including dogs is Melanocortin 1 Receptor (MC1R) which is also known as the Extension locus.

Learn the basics of color genetics in dogs, including Agouti, Extension, Parti Coloring, Chocolate and Dilution. Understanding dog coat color genetics can be complex, especially when you're trying to determine the outcome of a breeding pair or understand your pet's genetic background. To simplify the process, we've developed an intuitive and easy-to-use Dog Color Genetics Calculator.

This tool helps breeders, pet owners, and enthusiasts predict the likely coat color of a dog based on genetic.