Agrobacterium tumefaciens-mediated transformation of biofuel plant Jatropha curcas using kanamycin selection

摘要

Establishment of an efficient transformation system is a prerequisite for genetic improvement of?Jatropha curcas,?a promising biodiesel feedstock plant, by transgenic approach. In this study an efficient?Agrobacterium-mediated transformation protocol using cotyledon explants from?J.?curcas?seeds was developed. The integration and expression of the transgenes in the putatively transformed?J.?curcas?plants was confirmed by polymerase chain reaction (PCR), Southern blot analysis and β-glucuronidase (GUS) activity staining. In the protocol used, the critical step for successful transformation is that the selective agent kanamycin (20 mg/L) is not included in the callus-inducing medium within the first 4 weeks after co-cultivation with?Agrobacterium. ???Keywords:?Agrobacterium-mediated transformation, biofuel,?Jatropha curcas, kanamycin, physic nut, plant regeneration, transgenic plants.