EMBO reports (2009) 10, 1297–1300. doi:10.1038/embor.2009.251
In the December issue of EMBO reports, the article above incorrectly stated that the male genetic component involved in S-glycoprotein (poppy) plant self-incompatibility was still unknown.
In fact, Noni Franklin-Tong and colleagues at the University of Birmingham, UK, recently identified the male determinant of self-incompatibility as a gene coding for a novel transmembrane protein in pollen (Wheeler et al. (2009) Nature 459: 992–995). Their paper describes the detection of self-incompatibility through the interaction of these male and female determinants, which initiates a signalling cascade that inhibits growth of the pollen tube and triggers the programmed cell death of self pollen.