Recent Advances in Transgenic Orchid Production

With their attractive flowers and wildly diverse forms, orchids are a mainstay of the global floricultural trade. New varieties with improved floral characters and extended vase-life are continuously being generated by classical breeding techniques, though the selection process is necessarily time-consuming and remains a major obstacle to the rapid production of commercially-valuable orchids. Manipulation of specific floral traits and other desirable characteristics such as flowering time and vase-life by conventional sexual hybridization methods is also practically impossible. In the past decade, researchers have used molecular genetic techniques to revolutionize orchid biotechnology, which typically employs gene transformation systems coupled with rapid selection and regeneration methods for the production of new orchid varieties with the desired traits. Here, we summarize recent findings in transgenic orchid production, particularly with regards to improved transformation methods and the use of novel selectable markers. _____________________________________________________________________________________________________________