Is it true to say that the genome of trees includes or at least "encapsulates" the genome of mushrooms? As a botany amateur, I know that mushrooms (which are of course studied in field of mycology and not botany) are dependent in trees or shrubs (and maybe also bushes) and that there are generally strong symbiotic relations between trees and mushrooms. If mushrooms are strongly tree dependent and appear **per tree species** , is it true to say that the genome of trees includes the genome of mushrooms by some mechanism?

**No.**

**Evidence:** If you go to the TreeGenes site and examine those tree genomes that have been sequenced you won’t find any fungal chromosome sequences. (And _vice versa_.)

**Reason:** Although trees and mushrooms may develop symbiotic relationships they are independently viable (at least the trees), and even two organisms that can only survive in a symbiotic relationship have separate nuclei with separate chromosomes. They are distinguishable, so they are distinguished.