Although most flowering plants are polyploid. little is known of how the meiotic process evolves after polyploidisation to stabilise and preserve fertility. On wheat polyploidisation. the major meiotic gene ZIP4 on chromosome 3B duplicated onto 5B and diverged (TaZIP4-B2). https://www.roneverhart.com/2-1-2-x-1-4-x-36-Smooth-Saddle-Threshold-NGP-410-36/