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Sweet cherry cultivar identification by leaf isozyme polymorphism
A R Granger1, G R Clarke, J F Jackson
1Department of Horticulture, Viticulture and Oenology, Waite Agricultural Research Institute, University of Adelaide, 5064, Glen Osmond, South Australia, Australia.
Abstract:
Isozyme polymorphism can assist in the identification of cherry cultivars. Ten isozymes, each showing variation at only one locus, provide 70 unique genotype profiles from leaf extracts of 78 different sweet cherry cultivars. Polymorphism in 6PGD, G6PD, GPI, IDH, PGM, FDP, SKDH and PER is demonstrated for the first time, while observations are extended for the previously described polymorphisms in MDH and GOT. Some cultivars with identical morphological characters and previously treated as one cultivar can be separated on the basis of isozyme genotype. Irradiated mutants and parent material could also be differentiated.
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