AcoPMEI acts as a dual-function effector that promotes pollen tube growth and buffers against pistil-derived inhibition in pineapple.
Self-incompatibility (SI) severely restricts breeding efficiency and genetic improvement in cultivated pineapple (Ananas comosus (L.) Merr.), yet its molecular basis remains poorly understood. Here, we investigated the molecular processes associated with gametophytic SI (GSI) and compatible pollination using pineapple...