First stages of microspore reprogramming to embryogenesis through anther culture in Prunus armeniaca L.

▶ Development of in vitro anther culture protocol for pollen embryogenesis in apricot. ▶ Microspore reprogramming and first embryogenic steps achieved in different varieties. ▶ Response to embryogenesis inductive-stress and media was genotype-dependent. ▶ Monitoring of cellular architecture showed formation of multicellular pollen and embryos. ▶ Findings are key steps for further DH plant regeneration in apricot tree breeding.