Abstract
Protocols were developed for regeneration and Agrobacterium-mediated transformation of Actinidia eriantha Benth. A. eriantha has a number of features that make it a useful tool for functional genomics in Actinidia: the vines are relatively small and non-vigorous in nature, flowers form all over the vine including on lower axillary branches and the species flowers prolifically in greenhouse conditions. Flowering and fruiting of transgenic A. eriantha plants was obtained within 2 years of transformation in a containment greenhouse. GUS (beta-glucuronidase) activity indicating stable expression of the uidA gene was observed in leaf, stem, root, petal and fruit tissues. Molecular evidence for incorporation of transgenes into the A. eriantha genome was obtained by PCR and DNA gel blot analysis. Inheritance of transgenic phenotypes was demonstrated in seedling progeny. Functional genomic studies in kiwifruit have been initiated using transgenic A. eriantha plants.
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