usually seedless plants don't evolve from seed-bearing ones very often, simply because the plant then needs to reproduce through other means like offshoots or broken off pieces rerooting without human help, and most die out faster than these methods occur or can't spread away from the parent easily. One of the only natural cases i can think of is Devil's Ivy which has a genetic defect that prevents it from producing its flowers and therefore seeds. But its a rapidly growing vine that produces a lot of rooting hormone, so it pretty readily spreads and any broken pieces easily root down into new plants.