Polygenic?

~Greetings Boaphiles~

I was at the chat with Jeff on Sunday and saw him refer to the Pastel trait as being "Polygenic."
I did a search on Google, but didn't find an understandable explanation. Would someone please put it to me in laymans terms?
Thanks.

Jason

[Sojourn]

More than one gene combined to create the desired trait, refined through generations of selective breeding. It works in breeding very much like a generic dominant trait(not co-dominant). When you breed a pastel to a normal, you will get approximately half a litter of pastels, and when you breed a pastel to a pastel, you will get almost an entire litter of pastels.

Follow?

Gotchya.

Thanks!