Pollen recognition and rejection during the sporophytic self-incompatibility response: Brassica and beyond

S J Hiscock, S M McInnis

Research output: Contribution to journalReview article (Academic Journal)peer-review

77 Citations (Scopus)

Abstract

Many hermaphrodite flowering plants avoid self-fertilization through genetic systems of self-incompatibility (SI). SI allows a plant to recognize and to reject self or self-related pollen, thereby preserving its ovules for out-crossing. Genes situated at the S-locus encode the 'male' (pollen) and 'female' (pistil) recognition determinants of SI. In sporophytic SI (SSI) the male determinant is expressed in the diploid anther, therefore haploid pollen grains behave with a diploid S phenotype. In Brassica, the male and the female determinants of SSI have been identified as a peptide ligand and its cognate receptor, respectively, and recent studies have identified downstream signalling molecules involved in pollen rejection. It now needs to be established whether the Brassica mechanism is universal in species with SSI, or unique to the Brassicaceae.

Translated title of the contributionPollen recognition and rejection during the sporophytic self-incompatibility response: Brassica and beyond
Original languageEnglish
Pages (from-to)606-613
Number of pages8
JournalTrends in Plant Science
Volume8
Issue number12
DOIs
Publication statusPublished - Dec 2003

Bibliographical note

Publisher: Elsevier

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