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  • Title: S-RNase-mediated self-incompatibility.
    Author: Wang Y, Wang X, Skirpan AL, Kao TH.
    Journal: J Exp Bot; 2003 Jan; 54(380):115-22. PubMed ID: 12456761.
    Abstract:
    The Solanaceae, Rosaceae, and Scrophulariaceae families all possess an RNase-mediated self-incompatibility mechanism through which their pistils can recognize and reject self-pollen to prevent inbreeding. The highly polymorphic S-locus controls the self-incompatibility interaction, and the S-locus of the Solanaceae has been shown to be a multi-gene complex in excess of 1.3 Mb. To date, the function of only one of the S-locus genes, the S-RNase gene, has been determined. This article reviews the current status of the search for the pollen S-gene and the current models for how S-haplotype specific inhibition of pollen tubes can be accomplished by S-RNases.
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