Looking For A Link

I'm looking for either a book or link on cross breeding.
Something more scientific and less "jorge cervantes."
I found some really good books for cross breeding vegies,how would I fing out if it applys to cannabis?
What other plant shares or is close to mj on a cell level?
thanks

Have you read Marijuana Botany? I'd say that is the one you want.


Marijuana Botany


HTH

Hops, as in whats used in beer brewing is supposed to be the closest relative of canna from what i understand