Genetics of Colors in Chow Chows

Hi everybody, 
This is some special work I did couple of years ago after spending a lot of time studying researches out there on Color Genetics for Chow Chows. 
As you probably know, Chows don't transmit colors like other breeds and research in this field still continue

However, based on what is available out there and on experience, here below the possible combination based on parents genes. 

Keep in mind few rules:

• Chows have 4 specific known genes that dictate the color of their coat. 
• Genes are always transmitted in couple and pups will get one of each to form a new couple
• If genes are dominant (Upper Letter) will cover recessive (lower letter) genes.
• If a Chow is Homozygote, will have same gene (example KK (Black) , pups will always have KK 
• Chows have the D/d gene that changes the coat from red to fawn and black to blue (even KK)
• Chows have the E gene that if e/e will generate Cream hiding all the other genes, so pups from Cream Chow can be any color. Bear in mind Cream Color Chows can be easily mistaken for VERY LIGHT RED Chows which respond to genetics in a very different way!

ENJOY!
Chow Chow Ireland

As explained above, Cream Color Chows (not light red!!) have the peculiarity to override all the other genes because their coat mutation depends on a different set of genes.
Chows are cream when the E gene is double e/e. This will hide all the other genes. Cream Color parents (not light red!!) can then generate ANY color based on the set of genes they are hiding.
Although this double letter e/e, is still recessive, Cream Parents won't generate only Cream pups

For these reason, you will see behind 4 types of Cream where the Pup is cream but secretly brings 4 types of combinations (our Cream girl Arya, had 2 Black pups as proof of it!)

One last thing!!
Cream Chows can look identical of Very Light Red Chows (diluted red). If this is the case, pups will match the RED + other colors and NOT Cream and other color!