Two different types of pigment
An introduction to eumelanin and phaeomelanin

Black, recessive black and seal
The K and A series

Oddities
Somatic mutations, vitiligo and other weirdness

Basic genetics terms
Genes, locii etc

Liver
The B series

Nose colours
From black to pink and everything inbetween

Breeding
Punnet squares and a big Labrador case study

Dilution (blue and isabella)
The D series

Eye colours
Brown, amber and blue

Summary of series
List of alleles for reference

Agouti, sable, tan points and saddles
The A series

Coats
The longhaired gene and hairless dogs

Notes on Mutation etc
Some more advanced notes on mutation,
selective breeding and evolution

Brindle
The K series

Colour term list
Including body part diagram

Masks, recessive red and domino
The E series

Great Danes
In-depth breeding case study

Red intensity and albino
The I and C series

Health problems related to colour genes
Double merle problems and CDA

Progressive greying
The G series

Test your knowledge
A short genetics quiz!

Merle
The M series

Links
A few links to useful sites

Merle (continued)
The M series

DNA Testing
All-in-one DNA test for colour, health, and genetic diversity
(by Embark Vet)

**NEW**Advanced merle genetics
Cryptic, atypical, and harlequin merle

Inbreeding & Genetic Diversity
Learn how Embark’s proprietary diversity assessment can help
your breeding program (by Embark Vet)

Merle modifiers (Great Dane harlequin)
The H series

About me
Including contact info

White spotting
The S series

Art
More about my artwork

Ticking and roaning
The T series


** 20/05/2020: website fully updated with lots of new research and corrections. Changes have been made on almost every page, and information added about new alleles such as cryptic/atypical/harlequin merle, Northern domino, French Bulldog cocoa, Intensity, and more. Far too much to list, so go and see for yourselves!
I am looking for photo examples of the following: cocoa, tested merles with allele lengths, and tested dominos (Eg or Ed). If you have any of these then please send them to me via e-mail (please do not contact me via social media regarding genetics questions or photo submissions)

This resource has always been provided for free, and always will be! Want to support us? Make sure to check out our partner below, and my shops on Etsy (animal artwork here or vintage dog prints here) and Redbubble!

Please note that this website may not display properly in some mobile browsers. If you have any difficulties then try switching to a different browser or using a PC/laptop.

Disclaimer: Before reading through this site, please note that I am not a geneticist or a professional scientist (please see the "About Me" pages). I am a layperson with an interest in genetics, and particularly in making colour genetics interesting and easy to understand for everyone. This site is intended as an introduction to colour genetics in dogs, and while I do my best to ensure its accuracy, please do make sure to do further, independent research if you want to find out more. All of the pages on this site provide links to sources that are a great place to start your research.
Please also note that I am not always able to keep fully up to date on new discoveries in dog genetics, so if you do spot anything that's out of date, please let me know. Make sure to include links to your sources (i.e. published scientific studies).

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