Abstract
A system for the production of transgenic plants was developed for the Oriental hybrid lily, Lilium cv. Acapulco, by Agrobacterium-mediated genetic transformation. Filament-derived calli were co-cultivated with A. tumefaciens strain EHA101/pIG121Hm, which harbored a binary vector carrying the neomycin phosphotransferase II, hygromycin phosphotransferase, and intron-containing beta-glucuronidase genes in the T-DNA region. Six hygromycin-resistant (Hyg(r)) culture lines were obtained from 200 calli by scratching them with sandpaper prior to inoculation and using NH(4)NO(3)-free medium for co-cultivation and a hygromycin-containing regeneration medium for selection. Hyg(r) culture lines regenerated shoots, which developed into plantlets following transfer to a plant growth regulator-free medium. All of these plantlets were verified to be transgenic by GUS histochemical assay and inverse PCR analysis.
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