H. De Greye

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Insertion of the bacterial transposon Tn7 was used to obtain mutants of an octopine Ti plasmid. Crown gall tumours induced on tobacco by an Agrobacterium tumefaciens strain carrying a particular mutant Ti plasmid (pGV2100) were found to give rise to shoots. These shoots were grown in vitro and one of them (rGV-1) was found to contain the T-DNA specific(More)
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