Taking transgenic rice drought screening to the field
Article
Article Title | Taking transgenic rice drought screening to the field |
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ERA Journal ID | 2604 |
Article Category | Article |
Authors | Gaudin, Amelie C. M. (Author), Henry, Amelia (Author), Sparks, Adam H. (Author) and Slamet-Loedin, Inez H. (Author) |
Journal Title | Journal of Experimental Botany |
Journal Citation | 64 (1), pp. 109-117 |
Number of Pages | 9 |
Year | 2013 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0022-0957 |
1460-2431 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/jxb/ers313 |
Web Address (URL) | http://jxb.oxfordjournals.org/content/64/1/109 |
Abstract | Numerous transgenes have been reported to increase rice drought resistance, mostly in small-scale experiments under vegetative-stage drought stress, but few studies have included grain yield or field evaluations. Different definitions of drought resistance are currently in use for field-based and laboratory evaluations of transgenics, the former emphasizing plant responses that may not be linked to yield under drought. Although those fundamental studies use efficient protocols to uncover and validate gene functions, screening conditions differ greatly from field drought environments where the onset of drought stress symptoms is slow (2–3 weeks). Simplified screening methods, including severely stressed survival studies, are therefore not likely to identify transgenic events with better yield performance under drought in the target environment. As biosafety regulations are becoming established to allow field trials in some rice-producing countries, there is a need to develop relevant screening procedures that scale from preliminary event selection to greenhouse and field trials. Multilocation testing in a range of drought environments may reveal that different transgenes are necessary for different types of drought-prone field conditions. We describe here a pipeline to improve the selection efficiency and reproducibility of results across drought treatments and test the potential of transgenic rice for the development of drought-resistant material for agricultural purposes. |
Keywords | drought, field methodology, rice, screening, transgenic |
ANZSRC Field of Research 2020 | 310806. Plant physiology |
300406. Crop and pasture improvement (incl. selection and breeding) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | International Rice Research Institute, Philippines |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q39vv/taking-transgenic-rice-drought-screening-to-the-field
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