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Highly conserved 5'-flanking regions of two self-incompatibility genes, SLG9 and SRK9
G Suzuki1, M Watanabe, A Isogai
1Laboratory of Plant Breeding, Faculty of Agriculture, Tohoku University, Aoba-ku, Sendai, Japan.
Gene
|May 20, 1997
Abstract:
The nucleotide (nt) sequences of the 5'-flanking regions of two Brassica self-incompatibility genes, SLG9 and SRK9, were determined. Their sequences were highly conserved: a region spanning 1.9 kb in the 5'-flanking region was completely identical except for a 1319-bp segment in SLG9. These observations strongly suggest that SLG9 and SRK9 together with their promoter regions were involved in a gene duplication or conversion event which occurred before the 1319-bp SLG9-specific sequence was inserted in SLG9 or deleted in SRK9.