Ok, I thought runners form from roots, suckers form from the base of the trunk, or other portions above ground.
Any how, the jaboticaba can even produce runners...but I've only seen this a few times. The roots get so large, they swell up out of the ground, like an ant hill, about 5 ft away from the main trunk. The big roots can produce leafy branches, and eventually make another bush. At fruit and spice park there is a tree trying to do this, the runner keeps getting cut back, so it doesn't form another tree... its really fascinating to see a mound of jaboticaba bark on the ground flowering and fruiting!!
I've seen some really amazing specimens with fruits all in the roots, in places where you'd never expect.