title: Methods for genetic transformation in Dendrobium.
abstract: The genetic transformation of Dendrobium orchids will allow for the introduction of novel colours, altered architecture and valuable traits such as abiotic and biotic stress tolerance. The orchid genus Dendrobium contains species that have both ornamental value and medicinal importance. There is thus interest in producing cultivars that have increased resistance to pests, novel horticultural characteristics such as novel flower colours, improved productivity, longer flower spikes, or longer post-harvest shelf-life. Tissue culture is used to establish clonal plants while in vitro flowering allows for the production of flowers or floral parts within a sterile environment, expanding the selection of explants that can be used for tissue culture or genetic transformation. The latter is potentially the most effective, rapid and practical way to introduce new agronomic traits into Dendrobium. Most (69.4 %) Dendrobium genetic transformation studies have used particle bombardment (biolistics) while 64 % have employed some form of Agrobacterium-mediated transformation. A singe study has explored ovary injection, but no studies exist on floral dip transformation. While most of these studies have involved the use of selector or reporter genes, there are now a handful of studies that have introduced genes for horticulturally important traits.
authors.affiliation: , P. O. Box 7, Miki-cho Post Office, Ikenobe 3011-2, Miki-cho, Kita-gun, Kagawa-ken, 761-0799, Japan. jaimetex@yahoo.com.
authors.forename: Jaime A Teixeira
authors.initials: JA
authors.lastname: da Silva
authors.affiliation: Research Institute of Nyíregyháza, University of Debrecen, P.O. Box 12, Nyíregyháza, 4400, Hungary. dobranszki@freemail.hu.
authors.forename: Judit
authors.initials: J
authors.lastname: Dobránszki
authors.affiliation: Department of Rural Development, Centro de Ciências Agrárias, UFSCar, Via Anhanguera, Km 174, CP 153, Araras City, CEP 13.600-970, Brazil. jeancardosoctv@gmail.com.
authors.forename: Jean Carlos
authors.initials: JC
authors.lastname: Cardoso
authors.affiliation: School of Applied Sciences, RMIT University, Bundoora, VIC, 3083, Australia. schandler230@gmail.com.
authors.forename: Stephen F
authors.initials: SF
authors.lastname: Chandler
authors.affiliation: Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China. zengsongjun@scib.ac.cn.
authors.forename: Songjun
authors.initials: S
authors.lastname: Zeng
mesh_terms: D060054:Agrobacterium / Q000235:genetics; D019470:Biolistics / Q000379:methods; D031667:Dendrobium / Q000235:genetics* / Q000382:microbiology / Q000469:parasitology; D060467:Disease Resistance / Q000235:genetics; D035264:Flowers / Q000235:genetics*; D010858:Pigmentation / Q000235:genetics; D010935:Plant Diseases / Q000235:genetics / Q000382:microbiology / Q000469:parasitology; D030821:Plants, Genetically Modified / Q000235:genetics*; D046509:Tissue Culture Techniques / Q000379:methods; D014170:Transformation, Genetic / Q000235:genetics*
keywords: Dendrobium; GUS; Orchidaceae; Protocorm-like body; Transformation; Transgenic