A mutation near the active site of S-RNase causes self-compatibility in S-RNase-based self-incompatible plants.

Abstract excerpt

KEY MESSAGE: The structurally simplest amino acid glycine could make contribution to nuclease activity of S-RNase and self-incompatibility in S-RNase-based plants. S-RNase is regarded as inhibitor of self-pollen tube in S-RNase-based self-incompatibility plants. Certain residues like histidine are necessary for RNase activity and self-incompatibility; however, it is unknown whether any other residues contribute...

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