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Self-Incompatibility in Flowering Plants
The grasses represent one of the most important families of plants since they constitute our major crops and pastures and dominate many natural ecosystems. Self-incompatibility (SI) is widespread in the grasses and is under the control of a series of alleles at each of two unlinked loci, S and Z. Specification of the pollen grain is gametophytic and depends upon the combination of S and Z alleles in the pollen grain. Both of these must be matched in the pistil for the pollen grain to bedoi:10.1007/978-3-540-68486-2_13 fatcat:5lh5bms455at5f2esyxsrvf2mq