Abstract
Agrobacterium rhizogenes rolAB genes were transferred into lettuce ( Lactuca sativa L.) cultivar ‘Lake Nyah’ using a supervirulent strain of A. tumefaciens. Southern hybridisation confirmed the presence of the rol genes in kanamycinresistant plants. In culture, transgenic plants exhibited extensive root development and an increased response to auxin. Phenotypic characterisation of transgenic populations indicated significant alterations in plant development, especially in the seed progeny of transgenic plants. The potential commercial value of rolAB transformed lettuce plants is discussed.
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