Introduction of Resistance to Herbicide Basta registered in Savoy Cabbage

Resistance to herbicide Basta registered was introduced into pure inbred lines of Savoy cabbage (Brassica oleracea L. var. sabauda) by cocultivation of cotyledon and hypocotyl explants with Agrobacterium tumefaciens strains AGL1/pDM805 and LBA4404/pGKB5 (LB5-1). Shoot regeneration occurred on Murashige and Skoog medium supplemented with 1 mg dm super(-3) 6-benzyladenine and 0.5 mg dm super(-3) indole-3-butyric acid at 42.3 % and 71.4 % of hypocotyl explants treated with AGL1/pDM805 and LB5-1, respectively. Putative transformants that survived selection on 10 mg dm super(-3) phosphinothricin (L-PPT) supplemented medium were confirmed by GUS assay and PCR analysis. The transformation rate was 58 % with AGL1/ pDM805 and 25 % with LB5-1. Rooted plantlets were acclimated and then again screened for Basta registered -resistance by spraying with 15 - 60 mg dm super(-3) L-PPT. Surviving plants were selfed and Basta registered -resistance was demonstrated in T sub(1) progeny.