The emerging complexity of self-incompatibility (S-) loci

Andrew G. McCubbin, Teh Hui Kao

Research output: Contribution to journalReview article

40 Scopus citations


A complex picture of S-loci is beginning to emerge from recent studies of the S-locus of RNase-based gametophytic self-incompatibility displayed by the Rosaceae, Solanaceae, and Scrophulariaceae, and of the S-locus of the type of sporophytic self-incompatibility displayed by the Brassicaceae. It now appears that not only do these S-loci contain two separate genes, one controlling pollen function and the other controlling pistil function in self-incompatibility interactions, but also many other genes whose functions are largely unknown. The implications of these recent findings for the study of the mechanisms of self-incompatibility interactions and evolution of the self-incompatibility systems are discussed.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalSexual Plant Reproduction
Issue number1
Publication statusPublished - Jan 1 1999


All Science Journal Classification (ASJC) codes

  • Plant Science
  • Cell Biology

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