Contrasting self-recognition rejection systems for self-incompatibility in Brassica and Papaver

Daphne Goring, Maurice Bosch, Vernonica E. Franklin-Tong

Research output: Contribution to journalReview Articlepeer-review

10 Citations (SciVal)
22 Downloads (Pure)


Self-incompatibility (SI) plays a pivotal role in whether self-pollen is accepted or rejected. Most SI systems employ two tightly linked loci encoding highly polymorphic pollen (male) and pistil (female) S-determinants that control whether self-pollination is successful or not. In recent years our knowledge of the signalling networks and cellular mechanisms involved has improved considerably, providing an important contribution to our understanding of the diverse mechanisms used by plant cells to recognise each other and elicit responses. Here, we compare and contrast two important SI systems employed in the Brassicaceae and Papaveraceae. Both use ‘self-recognition’ systems, but their genetic control and S-determinants are quite different. We describe the current knowledge about the receptors and ligands, and the downstream signals and responses utilized to prevent self-seed set. What emerges is a common theme involving the initiation of destructive pathways that block the key processes that are required for compatible pollen–pistil interactions.

Original languageEnglish
Pages (from-to)R530-R542
Number of pages13
JournalCurrent Biology
Issue number11
Publication statusPublished - 05 Jun 2023


  • Brassica/genetics
  • Papaver/genetics
  • Pollen/metabolism
  • Pollination/physiology
  • Signal Transduction/physiology
  • Plant Proteins/metabolism


Dive into the research topics of 'Contrasting self-recognition rejection systems for self-incompatibility in Brassica and Papaver'. Together they form a unique fingerprint.

Cite this