Abstract
Daylily (Hemerocallis sp. ‘Stella de Oro’) callus cultures initiated from ovules were bombarded with gold particles coated with plasmid harboring Basta® resistance gene. Resulting putative transgenic calli were selected after 3 wk on semi-solid Murashige and Skoog’s (MS) basal medium supplemented with 10 mg L-1 1-naphthaleneacetic acid, 2 mg L-1 6-benzylaminopurine and 3 mg L-1 phosphinothricin (PPT). Surviving calli regenerated shoots after 2 mo on semi-solid MS medium supplemented with 2 mg L-1 thiadiazuron and 1 mg L-1 PPT. Polymerase chain reaction and Southern blotting were used to confirm independent transformation events. Key words: Basta® resistance, in vitro, Hemerocallis
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