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Employing a composite gene-flow index to numerically quantify a crop’s potential for gene flow: an Irish perspective

Published online by Cambridge University Press:  15 August 2005

Marie-Louise Flannery ,
Conor Meade  and
Ewen Mullins
Marie-Louise Flannery
Affiliation:
Teagasc Crops Research Centre, Oakpark, Carlow, Co. Carlow, Ireland
Conor Meade
Affiliation:
Gene-flow Laboratory, Institute of Bioengineering and Agroecology, National University of Ireland Maynooth, Co. Kildare, Ireland
Ewen Mullins
Affiliation:
Teagasc Crops Research Centre, Oakpark, Carlow, Co. Carlow, Ireland

Abstract

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Guidelines to ensure the efficient coexistence of genetically modified (GM) and conventional crops are currently being considered across the European Union. The purpose of this strategy is to describe the measures a farmer must adopt to minimize the admixture of GM and non-GM crops. Minimizing pollen / seed-mediated gene flow between GM and non-GM crops is central to successful coexistence. However no system is currently available to permit the numeric quantification of a crop’s propensity for pollen/seed-mediated gene flow. The provision of such a system could permit a background level of gene flow, specific for a particular conventional crop, to be calculated. Here we present a gene flow index model implemented using the principal arable crops in Ireland as a model dataset. The objective of this research was to establish a baseline gene flow data set for Ireland’s primary conventional crops through the provision of a simple numerical index. This Gene Flow Index (GFI) incorporates four strands of crop-mediated gene flow (crop pollen-to-crop, crop pollen-to-wild, crop seed-to-volunteer and crop seed-to-feral) into a format that permits the calculation of a crop’s gene flow potential. Responsive to regional parameters, we have applied the model to sugar beet, oilseed rape, potato, ryegrass, maize, wheat and barley. We propose that the attained indices will highlight those crops that require additional measures in order to minimize gene flow in accordance with anticipated coexistence guidelines.

Keywords

gene flowGMgenetically modifiedIrelandrisk assessmentgene flow indexcoexistencetransgenic
Type
Research Article
Information
Environmental Biosafety Research , Volume 4 , Issue 1 , January 2005 , pp. 29 - 43
Copyright
© ISBR, EDP Sciences, 2005

References

Advisory Committee on Releases to the Environment (2004) Advice on scientific issues concerning the proposed regime for the co-existence of GM and non-GM crops. p 6. http://www.defra.gov.uk/environment/acre/advice/pdf/acre_advice-56.pdf
Ammann K, Jacot Y, Al Mazyad RP (2001) Safety of genetically engineered plants: an ecological risk assessment of vertical gene flow. In Custers R, ed, Safety of Genetically Engineered Crops. Zwijnaarde, Belgium, Flanders Interuniversity, Institute for Biotechnology, pp 60–87
Bartsch, D, Brand, U, Morak, C, Pohl-Orf, M, Schuphan, I, Ellstrand, NC (2001) Biosafety of hybrids between transgenic virus-resistant sugar beet and Swiss chard. Ecol. Appl. 11: 142–147 CrossRef
Bartsch, D, Cuguen, J, Biancardi, E, Sweet, J (2003) Environmental implications of gene flow from sugar beet to wild beet – current status and future research needs. Environ. Biosafety Res. 2: 105–115 CrossRef
Beckie HJ, Hall LM, Warwick SI (2001) Impact of herbicide-resistant crops as weeds in Canada. Proceedings of British Crop Protection Conference: Weeds, pp 135–142
Boudry, P, Mörchen, M, Saumitou-Laprade, P, Vernet, P, Van Dijk H (1993) The origin and evolution of weed beets: consequences for the breeding and release of herbicide resistant transgenic sugar beets. Theor. Appl. Genet. 87: 471–478 CrossRef
Brule-Babel AL, Van Acker RC, Friesen LF (2003) Issues related to release of GM wheat: gene flow and selection. Proceedings of the 2002 Manitoba Agronomists Conference, University of Manitoba, Winnipeg, Canada
Conner, AJ, Glare, TR, Nap, JP (2003) The release of genetically modified crops into the environment. Part II. Overview of ecological risk assessment. Plant J. 33: 19–46 CrossRef
de Vries, AP (1974) Some aspects of cross pollination in wheat (Triticum aestivum L.). Seed set on male sterile plants as influenced by distance from the pollen source. Pollinator: Male sterile ratio and width of the male sterile strip. Euphytica 23: 601–622 CrossRef
de Vries AP, Meijden VD, Brandenburg WA (1992) Botanical files – a study of the real chances for spontaneous gene flow from cultivated plants to the wild flora of the Netherlands. Gorteria, Supplement 1, p 100
DEFRA (2001) Risk assessment for release and marketing of GMOs in the European Union. http://www.defra.gov.uk/environment/gm/background/risk
Department of Agriculture and Food (2004) Fact sheet on Irish agriculture: May 2004, p 2
Devos, Y, Reheul, D, de Schrijver, A, Cors, F, Moens, W (2004) Management of herbicide-tolerant oilseed rape in Europe: a case study on minimizing vertical gene flow. Environ. Biosafety Res. 3: 135–148 CrossRef
Eastham K, Sweet J (2002) Genetically modified organisms (GMOs): The significance of gene flow through pollen transfer. Environmental Issue Report No. 28, p 75
Eijlander, R, Stiekeman, WJ (1994) Biological containment of potato (Solanum tuberosum): Outcrossing to the related wild species black nightshade (S. nigrum) and bittersweet (S. dulcamara). Sex. Plant R. 7: 29–40
European Commission (2003) Guidelines for the development of national strategies and best practices to ensure the co-existence of genetically modified crops with conventional and organic farming, Commission Recommendation 2003/556/EC. http://europa.eu.int/comm/agriculture/publi/reports/coexistence2/index_en.htm
Frietema De Vries FT (1996) Cultivated plants and the wild flora. Effect analysis by dispersal codes. Rijksherbarium, Leiden
Gould FW (1968) Grass Systematics. New York, McGraw Hill, p 382
Hancock, JF (2003) A framework for assessing the risk of transgenic crops. BioSci. 53: 512–519 CrossRef
Hauser TP, Bjorn GK, Magnussen L, Shim SI (2003a) Hybrids between cultivated and wild carrots: a life history. European Science Foundation, Assessment of the Impacts of Genetically Modified Organisms: Introgression from genetically modified plants to wild relatives and its consequences, University of Amsterdam, Amsterdam, January 21–24
Hauser, TP, Damgaard, C, Jorgensen, RB (2003b) Frequency-dependent fitness of hybrids between oilseed rape (Brassica napus) and weedy B. rapa (Brassicaceae). Amer. J. Bot. 90: 571–578 CrossRef
Hucl, P (1996) Out-crossing rates for 10 Canadian spring wheat cultivars. Can. J. Plant Sci. 76: 423–427 CrossRef
Levin, DA, Kerster, HW (1974) Gene flow in seed plants. Evol. Biol. 7: 139–200
Loureiro I, Escorial MC, Garcia-Baudin JM, Chueca MC (2003) Pollen dispersal and potential hybridisation between wheat cultivars. In Boelt B, ed, 1st European Conference on Co-existence of Genetically Modified Crops with Conventional and Organic Crops, Research Centre Flakkebjerg, pp 85–88
McPartlan, H, Dale, PJ (1994) The transfer of introduced genes from field grown transgenic potatoes to non-transgenic potatoes and related Solanaceous species. Transgenic Res. 3: 216–225 CrossRef
Meade, C, Mullins, E (2005) GM crop cultivation in Ireland: Ecological and Economic considerations. Proc. R. Ir. Acad.: Biol. Environ. 105B: 33–52 CrossRef
Newstrom LE, Armstrong T, Robertson AW, Lee WG, Heenan PB, Peltzer D, Wilton AD, FitzJohn RG, Breitwieser I, Glenny D (2003) Environmental Risks to the New Zealand Flora from Transgenic Crops: the role of gene flow. Landcare Research, Lincoln, p 76. www.landcareresearch.co.nz/research/biodiversity/geneflow
Pohl-Orf M, Morak C, Wehres U, Saeglitz C, Drießen S, Lehnen M, Hesse P, Mücher T, von Soosten C, Schuphan I, Bartsch D (2000) The environmental impact of gene flow from sugar beet to wild beet: An ecological comparison of transgenic and natural virus tolerance genes. In Fairbairn C, Scoles G, McHughen A, eds, Proceedings of the 6th International Symposium on The Biosafety of Genetically Modified Organisms, July 2000, Saskatoon, Canada, pp 51–55
Preston CD, Pearman DA, Dines TD (2002) New Atlas of the British and Irish Flora. Oxford, Oxford University Press
Programme UNE (2003) The UNEP-GEF project on the implementation of the national biosafety framework of Bulgaria. United Nations Environmental Programme, Division of Global Environment Facility Coordination. http://www.unep.ch/biosafety/Implementation/countries/Bulgariaoperationalreport%202003_12final.pdf
Ramsay G, Thompson C, Squire G (2003) Quantifying landscape-scale gene flow in oilseed rape. Scottish Crop Research Institute, Invergowrie, Dundee and DEFRA, Project RG0216. http://www.defra.gov.uk/environment/gm/research/pdf/epg_ rg0216.pdf
Raybould, AF, Gray, AJ (1993) Genetically modified crops and hybridisation with wild relatives: A UK perspective. J. Appl. Ecol. 30: 199–219 CrossRef
Ritala, A, Nuutila, AM, Aikasalo, R, Kauppinen, V, Tammisola, J (2002) Measuring gene flow in the cultivation of transgenic barley. Crop Sci. 42: 278–285 CrossRef
Romano, A, Plas, LHW, Witholt, B, Eggink, G, Mooibroek, H (2005) Expression of poly-3-(R)-hydroxyalkanoate (PHA) polymerase and acyl-CoA-transacylase in plastids of transgenic potato leads to the synthesis of a hydrophobic polymer, presumably medium-chain-length PHAs. Planta 220: 455–464 CrossRef
Salisbury P (2002) Pollen movement in canola (Brassica napus) and outcrossing between B. napus crops. Environmental Safety Report, University of Melbourne, p 22
Sears MK, Stanley-Horn DE (2000) Impact of Bt corn pollen on monarch butterfly populations. In Fairbairn C, Scoles G, McHughen A, eds, Proceedings of the 6th International Symposium on The Biosafety of Genetically Modified Organisms, July 2000, Saskatoon, Canada
Stace CA (1984) Hybridization and the flora of the British Isles. Botanical Society of the British Isles, Academic Press, London, p 626
Sweet J, Simpson E, Law JR, Lutman P, Berry K, Payne R, Champion G, May M, Walker K, Wightman P, Lainsbury M (2004) Botanical and rotational implications of genetically modified herbicide tolerance in winter oilseed rape and sugar beet (BRIGHT Project). HGCA Project Report: p 265
Thanavala, Y, Mahoney, M, Pal, S, Scott, A, Richter, L, Natarajan, N, Goodwin, P, Arntzen, CJ, Mason, HS (2005) Immunogenicity in humans of an edible vaccine for hepatitis B. Proc. Natl. Acad. Sci. U.S.A. 102: 3378–3382 CrossRef
Tolstrup K, Andersen SB, Boelt B, Buus M, Gylling M, Holm PB, Kjellsson G, Pedersen S, Ostergard H, Mikkelsen SA (2003) Report from the Danish Working Group on the Co-existence of genetically modified crops with conventional and organic crops. DIAS Report Plant Production No. 94, p 275
Treu R, Emberlin J (2000) Pollen dispersal in the crops Maize (Zea mays), Oil seed rape (Brassica napus ssp oleifera), Potatoes (Solanum tuberosum), Sugar beet (Beta vulgaris ssp. vulgaris) and Wheat (Triticum aestivum). A report for the Soil Association, National Pollen Research Unit, University College Worcester, p 54
Tynan, JL, Williams, MK, Conner, AJC (1990) Low frequency of pollen dispersal from a field trial of transgenic potatoes. J. Genet. Breed. 44: 303–306
USDA (2002) Fact Sheet: Environmental Considerations for Bio-Engineered Crops in U.S. Food Aid Donations, Bureau of Economic and Business Affairs, Washington DC. http://www.state.gov/e/eb/rls/fs/15605.htm
Van Acker RC, Brûlé-Babel AL, Friesen LF, Entz MH (2003) GM/non-GM wheat co-existence in Canada: Roundup Ready® wheat as a case study. In Boelt B, ed, 1st European Conference on Co-existence of Genetically Modified Crops with Conventional and Organic Crops, Research Centre Flakkebjerg, pp 60–71
Van Raamsdonk, LWD, Schouten, HJ (1997) Gene flow and establishment of transgenes in natural plant populations. Acta Bot. Neerl. 46: 69–84 CrossRef
Waines, JG, Hegde, SG (2003) Intraspecific gene flow in bread wheat as affected by reproductive biology and pollination ecology of wheat flowers. Crop Sci. 43: 451–463 CrossRef
Webb DA, Parnell JAN, Doogue D, Dundalk (1996) An Irish Flora. Dundalk, Dún Dealgan Press
Wilkinson, MJ, Sweet, J, Poppy, GM (2003) Risk assessment of GM plants: avoiding gridlock? Trends Plant Sci. 8: 208–212 CrossRef