OR distyly evolved multiple times in the family, its evolution being facilitated by the use of this ancestrally duplicated region. After all, there seems to be a high level of convergence in this trait among flowering plants, why not within the family? 🤔

Either way, I hope you're convinced Oleaceae is a really fascinating clade to study the evolution of self-incompatibility systems. Looking forward to seeing what people will discover in the future!