Genomic organization of the S-locus region of Brassica.
To gain some insights into the structure of the S-locus and the mechanisms that have kept its diversity, a 75-kb genomic fragment containing the self-incompatibility (S) locus region was isolated from the S12-haplotype of Brassica rapa and compared with those of other S-haplotypes. The region around the S determinant genes was highly polymorphic and filled with S-haplotype-specific intergenic sequences. The diverse genomic structure must contribute to the suppression of recombination at the S-locus.
Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0101, Japan. h-siba@bs.aist-nara.ac.jp
Hiroshi
H
Shiba
Masayuki
M
Kenmochi
Minoru
M
Sugihara
Megumi
M
Iwano
Shinji
S
Kawasaki
Go
G
Suzuki
Masao
M
Watanabe
Akira
A
Isogai
Seiji
S
Takayama
D001483:Base Sequence; D029741:Brassica rapa / Q000235:genetics*; D004251:DNA Transposable Elements / Q000235:genetics; D019143:Evolution, Molecular; D017343:Genes, Plant / Q000235:genetics; D018745:Genome, Plant; D006239:Haplotypes / Q000235:genetics; D016013:Likelihood Functions; D008969:Molecular Sequence Data; D016366:Open Reading Frames / Q000235:genetics; D020161:Physical Chromosome Mapping; D010940:Plant Proteins / Q000235:genetics; D011110:Polymorphism, Genetic / Q000235:genetics; D012091:Repetitive Sequences, Nucleic Acid
D004251:DNA Transposable Elements; D010940:Plant Proteins