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- Title
Genomic Organization of the SLG/SRK Region of the S Locus in Brassica Species.
- Authors
Watanabe, Masao; Suzuki, Go; Takayama, Seiji; Isogai, Akira; Hinata, Kokichi
- Abstract
Self-incompatibility in Brassica species is controlled by a single S locus with multiple alleles. Recent experimental data suggest that SLG (S locus glycoprotein) and/or SRK (S receptor kinase) are the stigmatic S determinants of self-incompatibility in Brassica. A 76-kb genomic fragment containing both SLG and SRK was isolated and characterized in the S9 haplotype of B. campestris. This fragment contains at least 14 expressed genes and three putative open reading frames (ORFs), suggesting that the S locus is embedded in a gene-rich region. Within this fragment, both anther and/or stigma-specific genes are clustered around the SLG and SRK genes. Some members of the S multigene family are also closely linked to the S locus. In this review we discuss the complex genomic structure of the S locus in Brassica species.
- Subjects
PLANT self-incompatibility; ALLELES in plants; BRASSICA; GENETIC research; GLYCOPROTEINS; OPEN reading frames (Genetics)
- Publication
Annals of Botany, 2000, Vol 85, Issue suppl_1, p155
- ISSN
0305-7364
- Publication type
Article
- DOI
10.1006/anbo.1999.1035