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For the first time, the phosphomannose isomerase (PMI, EC 5.3.1.8)/mannose-based “positive” selection system has been used to obtain genetically engineered sugarcane (Saccharum spp. hybrid var. CP72-2086) plants. Transgenic lines of sugarcane were obtained following biolistic transformation of embryogenic callus with an untranslatable sugarcane mosaic virus (SCMV) strain E coat protein (CP) gene and...
In order to meet the future requirement of using non-antibiotic resistance genes for the production of transgenic plants, we have adapted the selectable marker system PMI/mannose to be used in Agrobacterium-mediated transformation of flax (Linum usitatissimum L.) cv. Barbara. The Escherichia coli pmi gene encodes a phosphomannose isomerase (E.C. 5.1.3.8) that converts mannose-6-phosphate, an inhibitor...
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