Insights into pollen-stigma recognition: self-incompatibility mechanisms serve as interspecies barriers in Brassicaceae?

A new study provides a comprehensive molecular mechanism that controls interspecific incompatibility of self-incompatible (SI) plants in the Brassicaceae. This finding points to a potentially promising path to break interspecific barriers and achieve introgression of desirable traits into crops from distant species among SI crops in the Brassicaceae.
Competing Interests: Conflict of interestThe authors declare no conflicts of interest. Author Li-Jia Qu Xie was not involved in the journal’s review of the manuscript.
(© Agricultural Information Institute, Chinese Academy of Agricultural Sciences 2023.)