in most cases a monokaryon isolate is required. other spores are germinated nearby and thier monokaryons may mate with the isolate creating dikaryon mycelium which is required for fruiting. the dna exchange occurs during the mating, but not all matings will fruit....
lol! this can be a bit complicated, so questions are good.

i am glad you have seen some of the albino work. i have done this several times.. the best result being Falbino. (F+ x PF Albino cubensis varietal cross)
i was going to introduce myself, but i saw this thread first! heh, couldn't resist!
can't wait to see more of this wonderful site!
much love