Nucleotide sequence analysis of S-locus genes to unify S haplotype nomenclature in radish

Yurie Haseyama, Hiroyasu Kitashiba, Shunsuke Okamoto, Emiko Tonouchi, Koji Sakamoto, Takeshi Nishio

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)


    Radish, belonging to the family Brassicaceae, has a self-incompatibility which is controlled by multiple alleles on the S locus. To employ the self-incompatibility in an F1 breeding system, identification of S haplotypes is necessary. Since collection of S haplotypes and determination of nucleotide sequences of SLG, SRK, and SCR alleles in cultivated radish have been conducted by different groups independently, the same or similar sequences with different S haplotype names and different sequences with the same S haplotype names have been registered in public databases, resulting in confusion of S haplotype names for researchers and breeders. In the present study, we developed S homozygous lines from radish F1 hybrid cultivars in Japan and determined the nucleotide sequences of SCR, the S domain and the kinase domain of SRK, and the SLG of a large number of S haplotypes. Comparing these sequences with our previously published sequences, the haplotypes were ordered into 23 different S haplotypes. The sequences of the 23 S haplotypes were compared with S haplotype sequences registered by different groups, and we suggested a unification of these S haplotypes. Furthermore, dot-blot hybridization using SRK allele-specific probes was examined for developing a standard method for S haplotype identification.

    Original languageEnglish
    Article number116
    JournalMolecular Breeding
    Issue number9
    Publication statusPublished - 2018 Sept 1


    • Radish
    • S haplotype identification
    • S haplotype nomenclature
    • Self-incompatibility

    ASJC Scopus subject areas

    • Biotechnology
    • Molecular Biology
    • Agronomy and Crop Science
    • Genetics
    • Plant Science


    Dive into the research topics of 'Nucleotide sequence analysis of S-locus genes to unify S haplotype nomenclature in radish'. Together they form a unique fingerprint.

    Cite this