The S 15 Self-Incompatibility Haplotype in Brassica Oleracea Includes Three S Gene Family Members Expressed in Stigmas
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چکیده
منابع مشابه
The S15 self-incompatibility haplotype in Brassica oleracea includes three S gene family members expressed in stigmas.
Self-incompatibility in Brassica is controlled by a single, highly polymorphic locus that extends over several hundred kilobases and includes several expressed genes. Two stigma proteins, the S locus receptor kinase (SRK) and the S locus glycoprotein (SLG), are encoded by genes located at the S locus and are thought to be involved in the recognition of self-pollen by the stigma. We report here ...
متن کاملAn alternative transcript of the S locus glycoprotein gene in a class II pollen-recessive self-incompatibility haplotype of Brassica oleracea encodes a membrane-anchored protein.
Recent reports have shown that SLG, one of two genes linked to the S locus of Brassica, encodes a secreted glycoprotein. We have used RNA gel blot analysis, genomic and cDNA clone analysis, expression in transgenic plants, and immunodetection to characterize SLG2, the SLG gene derived from the S2 haplotype. This haplotype belongs to the class II group of S haplotypes that exhibit a weak incompa...
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Intracellular trafficking of plant receptor kinases (PRKs) is a key step in regulation of cellular signaling. Our current knowledge in this field is based on systems that address signaling pathways affecting the whole cell. There are, however, signaling phenomena that add a further layer of complexity. In the Brassica self-incompatibility response, a single cell can adequately respond to two op...
متن کاملExpression of a self-incompatibility gene in a self-compatible line of Brassica oleracea.
In cruciferous plants, self-pollination is prevented by the action of genes situated at the self-incompatibility locus or S-locus. The self-incompatibility reaction is associated with expression of stigma glycoproteins encoded by the S-locus glycoprotein (SLG) gene. Only a few cases of self-compatible plants derived from self-incompatible lines in the crucifer Brassica have been reported. In th...
متن کاملSelf-incompatibility genes of Brassica oleracea: Expression, isolation, and structure.
We demonstrate by in situ hybridization the cell-type-specific expression of transcripts encoded by the self-incompatibility (S) locus of Brassica oleracea. These transcripts are not detected early in stigma development, their expression is switched on in the papillar cells of the stigma surface, and their levels increase in these cells in correlation with the acquisition by the stigma of the s...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 1999
ISSN: 1040-4651
DOI: 10.2307/3870829