Abstract Background Heterosis is a common phenomenon in plants and has been extensively applied in crop breeding. However. the superior traits in the hybrids can only be maintained in the first generation but segregate in the following generations. Maintaining heterosis in generations has been challenging but highly desirable in crop breeding. https://www.roneverhart.com/Polly-Pocket-Polly-Lila-Tropicool-Pineapple-Wearable-Purse-Compact/