Joe you are correct there are many unique figs in the world, however, a single population from each area where they grow naturally will yield trees that are so closely related in nearly every case that dna testing is the only certain way to know the differences. Changes in nature as a rule, happen very slowly and infrequently. Of course there are exceptions, occassional jumps like a sport (most occur on man made hybrids) but they are few when you consider the total size of a population. When man interferes through hybridizing then you get many differences in seedlings, left to nature the differences can take eons. Take a fig out of it's natural environment, plant it in a very different environment, how long before nature creates the conditions for the plant to actually change it's dna to adapt to the new conditions? If it can stay alive long enough to reproduce that is. We all know our trees are adaptable to different environments, I'm not talkiing about that, I'm talking about significant differences in appearance and growth habit and taste etc. caused by very different growing conditions. A fig native to Israel vs a fig native to say Italy for example will have significant differences in dna, but those figs growing near each other in each location will be nearly the same. Most plants will intergrade as they naturally progress from location to location, differences appear as the plant reproduces and spreads, but those differences take time. We speed that all up when we breed for specific characteristics.