Histological analysis and transcription profiles on somatic embryogenesis in interspecific hybrids of Elaeis guineensis × E. oleifera.

Elaeis guineensis (African oil palm) and E. oleife- ra (American oil palm) are bred to attain high oil yields, disease resistances, and decelerated shoot elongation. We cultivated immature zy- gotic embryos from backcrossed and F1 inter- specific progenies on media containing 110, 150, or 200 mg·l?1 2,4-diclorophenoxyacetic acid (2,4- D) to obtain embryogenic cultures