transformation history for class

transformation history for class - Plant Biotechnology...

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Plant Biotechnology Journal (2007) 5 , pp. 221–229 doi: 10.1111/j.1467-7652.2006.00225.x © 2006 Blackwell Publishing Ltd 221 Blackwel Publishing Ltd Oxford, UK PBI Plant Biotechnology Journal 1467-764 © 20 6 Blackwel Publishing Ltd ? 20 6 2?Original Article Plant transformation technology development Philippe Vain Review article Thirty years of plant transformation technology development Philippe Vain* John Innes Centre, Crop Genetics Department, Norwich Research Park, Colney Lane, Norwich NR4 7UH, UK Summary Technology development is seminal to many aspects of basic and applied plant transgenic science. Through the development and commercialization of genetically modified crops, the evolution of plant transgenic technologies is also relevant to society as a whole. In this study, literature statistics were used to uncover trends in the development of these technologies. Publication volume and impact (citation) over the past 30 years were analysed with respect to economic zones, countries, species and DNA delivery method. This revealed that, following a dramatic expansion in the 1980s, publications focusing on the development of transgenic technology have been slowing down worldwide since the early mid-1990s, except in a few leading Asian countries. The implications of these trends on the future of plant transgenic science as a whole are discussed. Received 4 June 2006; revised 19 September 2006; accepted 25 September 2006. * Correspondence (fax +44-1603-450023; e-mail philippe.vain@bbsrc.ac.uk) Keywords: Agrobacterium , bibliometry, literature statistics, particle bombardment, protoplast, transformation technology, transgene, transgenic plant. Introduction Recent bibliometric studies have allowed a re-evaluation of the scale, composition and evolution of the plant transgenic science literature (Vain, 2005, 2006). These studies have revealed significant trends in technology development (DevTech), technology application (AppTech) and genetically modified crop (GMcrop) development and analysis. These studies have also highlighted a positive correlation between the global publication level in DevTech and their applications (AppTech + GMcrop) in the top 30 countries, which has been taken to imply that DevTech is likely to drive plant transgenic science as a whole (Vain, 2006). Past studies of transgene behaviour in plants have led to such key biological discoveries as post- transcriptional gene silencing (Napoli et al ., 1990) and siRNA (small interfering RNA) (Hamilton and Baulcombe, 1999), and these have since contributed greatly to the understanding of the paneukaryotic process of RNA silencing (Hannon, 2002). Technological weakening will therefore probably affect many aspects of both basic and applied plant science. In a further analysis of the evolution of the DevTech literature, we now examine how its current status could inform on the future evolution of plant transgenic science as a whole. This study centres on a set of 4545 DevTech bibliographic
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This note was uploaded on 07/23/2011 for the course HOS 6737c taught by Professor Moore during the Spring '09 term at University of Florida.

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transformation history for class - Plant Biotechnology...

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