Summary
A comparison of the stigma protein patterns of individual plants of the inbred- and cross-progenies in Nicotiana alata by isoelectric focusing revealed the presence of S-specific proteins. The S allele-protein relationship was found for three different S alleles. The S-specific proteins occurred in both stigma and stylar parts of the pistil whereas they were absent in leaves. In clone OWL the concentration of S-specific proteins in the stigma increased gradually during floral development. The shift from compatibility to incompatibility was not accompanied by an abrupt increase in concentration of the S-proteins.
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Literature
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Communicated by H.F. Linskens
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Bredemeijer, G.M.M., Blaas, J. S-specific proteins in styles of self-incompatible Nicotiana alata . Theoret. Appl. Genetics 59, 185–190 (1981). https://doi.org/10.1007/BF00264974
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DOI: https://doi.org/10.1007/BF00264974