Abstract
Micro-propagation, embryo rescue, mutagenesis via chemical or irradiation means and in vitro inter-specific hybridisation methods have been used by breeders in the floriculture industry for many years. In the past 20 years these enabling technologies have been supplemented by genetic modification methods. Though many genes of potential utility to the floricultural industry have been identified, and much has been learnt of the genetic factors and molecular mechanisms underlying phenotypes of great importance to the industry, there are only flower colour modified varieties of carnation and rose in the marketplace. To a large extent this is due to unique financial barriers to market entry for genetically modified varieties of flower crops, including use of technology fees and costs of regulatory approval.
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