Genetic transformation of Medicago species by Agrobacterium tumefaciens and electroporation of protoplasts.

Shoot and leaf segments of a non-regenerable Medicago sativa L. genotype were cocultivated with the "shooty" mutant of Agrobacterium tumefaciens carrying the pGV 2206 plasmid. Transformed callus lines were selected and regenerated on the hormone free B5 medium.