Molecular mechanisms of self-incompatibility in Brassica.
In Brassica species, self-incompatibility has been mapped genetically to a single chromosomal location. In this region several closely linked genes have been identified. One of them, S-locus receptor kinase (SRK), determines S haplotype specificity of the stigma and it's the key protein for SI reaction. The role of the S locus glycoprotein (SLG) gene remains unclear. In the last decade approximately 15 additional genes linked to S-locus have been found. Recently, a gene has been identified (SCR) that encodes a small cysteine-rich protein which is a candidate for the pollen ligand. In addition to S locus linked genes there are unlinked SLRgenes (S-locus related genes). In this review, we discuss the role of these genes and the current view on the self-incompatibility mechanism in Brassica.
Sobotka
R
R
Faculty of Agriculture, University of South Bohemia, Ceské Budejovice, Czech Republic.
Sáková
L
L
Curn
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V
D000595:Amino Acid Sequence; D001937:Brassica / Q000235:genetics* / Q000254:growth & development; D002874:Chromosome Mapping; D017343:Genes, Plant; D006023:Glycoproteins / Q000235:genetics; D008954:Models, Biological; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000235:genetics; D011058:Pollen / Q000254:growth & development; D011494:Protein Kinases / Q000235:genetics; D017386:Sequence Homology, Amino Acid
D006023:Glycoproteins; D010940:Plant Proteins; C401308:SCR protein, Brassica oleracea; C064156:self-incompatibility locus specific glycoprotein, Brassica; D011494:Protein Kinases; C079832:S-receptor kinase