In vitro regeneration and transformation of pigeonpea [Cajanus cajan (L.) Millsp]
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A requirement for generating transgenic pigeonpea [Cajanuscajan (L.) Millsp] plants is the development of a highly efficientin vitro regeneration procedure. This goal was achieved byusing germinated seedlings grown on B5 medium supplemented with 10 mgl−1 6-benzylaminopurine, which induced differentiatingcallus formation in the cotyledonary node region. The calli were transferred onB5 medium with 0.2 mg l−1 6-benzylaminopurine toobtain shoot induction. Elongated shoots were then further cultured on a B5hormone-free medium for rooting. Using this regeneration system transgenicpigeonpea plants were obtained both by particle bombardment andAgrobacterium tumefaciens-mediated gene transfer. Thepresence of the transgenes in the pigeonpea genome was confirmed by GUS assays,PCR and Southern hybridisation. The transgenic rooted plants were successfullytransferred to soil in the greenhouse. GUS and PCR assays of T1 progeniesconfirmed that the transgenes were stably transmitted to the next generation.This is the first report of successful use ofAgrobacteriumas well as particle bombardment for production of transgenic pigeonpea plants.
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- In vitro regeneration and transformation of pigeonpea [Cajanus cajan (L.) Millsp]
Volume 11, Issue 2 , pp 159-168
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- Kluwer Academic Publishers
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- Particle bombardment
- Plant regeneration
- Transgenic plants
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- Author Affiliations
- 1. Laboratory of Plant Genetics, Institute of Molecular Biology and Biotechnology, Vrije Universiteit Brussel, Paardenstraat 65, Sint-Genesius-Rode, B-1640, Belgium