Colour

Marking

Body type

Coat

Colour genes

Marking genes

Acknowledgements

Much of the data on this site comes from various genetics articles, rat fancy journals/newsletters, and books published over the years.

Lots of the information here are the result of huge amounts of personal correspondence. Thank you to everyone who has responded to one of my many pleas for information or breeding results regarding any number of varieties – and special thanks to Ann Storey who seems to have answered the majority of them for me!

Standards reproduced through kind permission of the NFRS, and obviously remain their copyright.

Many thanks to everyone who has contributed pictures to this site over the years – it’s always appreciated.

A list of specific references is to follow.