Gene conversion from SLG to SRK resulting in self-compatibility in Brassica rapa

Ryo Fujimoto, Tetsu Sugimura, Takeshi Nishio

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    Self-compatible S-54 homozygotic plants were found in progenies of an F1 hybrid cultivar in Chinese cabbage. Pollination tests revealed that this self-compatibility is controlled by the S locus and caused by the loss of the recognition function of the stigma. SRK, the gene for the recognition molecule in the stigma, was normally transcribed and translated in the self-compatible plants. The 1034-bp region in the receptor domain of SRK in the self-compatible plants was 100% identical to SLG in S-54, while that in self-incompatible S-54 homozygotic plants was 95.1% identical. These results suggest that the self-compatibility of the S-54 homozygotes is due to amino-acid changes caused by gene conversion from SLG to SRK.

    Original languageEnglish
    Pages (from-to)425-430
    Number of pages6
    JournalFEBS Letters
    Volume580
    Issue number2
    DOIs
    Publication statusPublished - 2006 Jan 23

    Keywords

    • Brassica rapa
    • Gene conversion
    • Pollen-stigma interaction
    • Recognition specificity
    • S haplotype
    • Self-incompatibility

    ASJC Scopus subject areas

    • Biophysics
    • Structural Biology
    • Biochemistry
    • Molecular Biology
    • Genetics
    • Cell Biology

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