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Transformed root lines of Nicotiana species, containing NPTII and Gus genes, were used to study the parameters affecting the use of the Polymerase Chain Reaction as a routine analytical tool for quickly analysing plant transformants for the presence of a foreign gene. The basic reaction mix as described by Cetus Corporation (Saiki 1989) was close to optimal(More)
Expiants of five plant species (Allium cepa, Antirrhinum majus, Brassica campestris. Glycine max, and Nicotiana tabacum) were co-cultivated with three Agrobacterium tumefaciens strains under different conditions to assess the effects of acetosyringone and medium pH on strain virulence. Tumours were incited on all dicotyledonous species by strains N2/73 and(More)
Sugar, fodder and garden beet (Beta vulgaris L.) plants have been regenerated in culture from a range of expiant material. Of the regenerants 764 were subjected to isozyme analysis using eight enzyme-specific stains, and 60 were subjected to RFLP analysis using three cDNA probes. Both molecular techniques allowed the identification of somaclonal variant(More)
cDNA probes have been used to assess genetic variation in beet using hybridisation techniques that detect restriction fragment length polymorphism. Probes have been identified which differ in the levels of variation that they can detect (i) within closely related genetic material of sugar beet, and (ii) between sugar beet and a taxonomically distant Beta(More)
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