e/e cream

Cream dogs have no black hair. The 'on switch' to make black pigment is basically non-functional. Only yellow pigment is produced and the cream/yellow colour varies from near-white to warm gold. Several "Intensity" genes control the shade of cream. Solid cream dogs are a good opportunity to see the fundamental phaeomelanin 'intensity' genes at work on a blank canvas of dog hair.

Two genes working together, control the majority of dog coat patterns. Historically they were called A and E. These days they are known as ASIP and MCR1

E works like a switch or a regulator valve. If the E (MCR1) gene product is working properly, the dog will have a lot of darkly pigmented hair.

I like to think of MCR1 as a hose nozzle rather than a switch. It has a soaker mode (Em), a normal spray, (E), a light spray (Ed) and it can also be turned completely off (e)

Cream dogs have the soaker hose turned off. No black pigment can appear on the dog.

e/e cream

On to Ay Sable

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