Cytological Analysis in Embryogenic Callus Cultures and Regenerated Plants of Papaver somniferum L. (Opium Poppy)

抄録

Embryogenic callus cultures and plant regeneration were obtained from cultured hypocotyl explants of Papaver somniferum L. (opium poppy). The cytological analysis showed chromosome abnormalities in embryogenic cultures, however, plants regenerated from them were uniformly diploid with 2n=22 and matched the plants grown from seeds in karyotypic details, meiotic behaviour, pollen stainability and seed set. The uniformity in regenerated plants seems to be on account of preferential selection and regeneration only from normal diploid cells.