Regeneration and Agrobacterium-mediated transformation of chrysanthemum |
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| Authors: | Susan E Ledger Simon C Deroles Nigel K Given |
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| Institution: | (1) Horticultural Research Centre, Ministry of Agriculture and Fisheries, Levin, New Zealand;(2) Present address: Department of Cellular and Molecular Biology, University of Auckland, Private Bag, Auckland, New Zealand |
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| Abstract: | A method has been developed to regenerate shoots directly from leaf pieces of the autumn flowering chrysanthemum Dendranthema indicum (L.) Des Moul (genotype Korean). Transgenic plants of this genotype were generated using transformation mediated by the disarmed strain of Agrobacterium tumefaciens LBA4404, containing either pKIWI110 or pGA643. Both pKIWI110 and pGA643 contain the selectable marker gene neomycin phosphotransferase II (NPTII) and pKIWI110 also contains the reporter gene  -D-glucuronidase. Leaf pieces inoculated with pKIWI110 produced zones of blue cells two days after inoculation. Shoots from leaf pieces inoculated with pGA643 were selected on kanamycin. PCR and Southern analysis of shoots that were able to root on kanamycin confirmed the presence of the NPTII gene in the plant genome. |
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