Somatic Embryogenesis in Olive.

The olive is a fruit tree species economically very important in countries of the Mediterranean basin. Somatic embryogenesis is a powerful in vitro technique with multiple applications in different fields, including breeding programs performed by both classical and innovative procedures. This editorial paper presents a special issue focused on "Somatic embryogenesis in olive". In this manuscript, the conceptual framework of the special issue is established and the contributions are summarized and put into context. Finally, the main bottlenecks limiting the practical applicability of somatic embryogenesis are identified and the future research prospects are discussed.