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Meiotic restitution

Most higher plants have experienced genome polyploidization in the history of evolution, which contributes to genomic diversification and speciation. Production and fusion of unreduced gametes, which result from meiotic restitution, a non-reductional meiosis event, are considered the main cause of polyploidization. Meiotic restitution can be triggered by omission of meiotic cell cycle, defective spindle organization, or incomplete cytokinesis. We have particular interests in studying the mechanisms underlying meiotic restitution in plants, and their potential to be exploited in breeding programs.