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Cited by 105Genetically Modified Organisms ResearchAgricultural safety and regulationsCrop Yield and Soil Fertility

Definition and feasibility of isolation distances for transgenic maize cultivation

Sanvido, Olivier, Widmer, Franco, Winzeler, Michael, Streit, Bernhard, Szerencsits, Erich, Bigler, Franz·2008·Transgenic Research
DOI 10.1007/s11248-007-9103-1
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Abstract

A major concern related to the adoption of genetically modified (GM) crops in agricultural systems is the possibility of unwanted GM inputs into non-GM crop production systems. Given the increasing commercial cultivation of GM crops in the European Union (EU), there is an urgent need to define measures to prevent mixing of GM with non-GM products during crop production. Cross-fertilization is one of the various mechanisms that could lead to GM-inputs into non-GM crop systems. Isolation distances between GM and non-GM fields are widely accepted to be an effective measure to reduce these inputs. However, the question of adequate isolation distances between GM and non-GM maize is still subject of controversy both amongst scientists and regulators. As several European countries have proposed largely differing isolation distances for maize ranging from 25 to 800 m, there is a need for scientific criteria when using cross-fertilization data of maize to define isolation distances between GM and non-GM maize. We have reviewed existing cross-fertilization studies in maize, established relevant criteria for the evaluation of these studies and applied these criteria to define science-based isolation distances. To keep GM-inputs in the final product well below the 0.9% threshold defined by the EU, isolation distances of 20 m for silage and 50 m for grain maize, respectively, are proposed. An evaluation using statistical data on maize acreage and an aerial photographs assessment of a typical agricultural landscape by means of Geographic Information Systems (GIS) showed that spatial resources would allow applying the defined isolation distances for the cultivation of GM maize in the majority of the cases under actual Swiss agricultural conditions. The here developed approach, using defined criteria to consider the agricultural context of maize cultivation, may be of assistance for the analysis of cross-fertilization data in other countries.

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36 of 36 references verified0 citation errors · 0 not checkable

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  • Maize pollen is relatively heavy and deposited mainly within or close proximity to the maize field, limiting off-crop exposure, although certain wind conditions may lead to pollen drift over several kilometers.

    “Maize pollen is relatively heavy and deposited mainly within or in close proximity to the maize field, which limits exposure of arthropods offcrop, although certain wind conditions may lead to pollen drift over several kilometers (Sanvido et al., 2008).”

    From Genetically engineered crops help support conservation biological control (2019) · cites this paper as Sanvido et al., 2008

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Authors
Sanvido, O., Widmer, F., Winzeler, M., Streit, B., Szerencsits, E., & Bigler, F.
Affiliations
Agroscope (CH)
Corresponding author
Sanvido, Olivier
ORCID
Venue
Transgenic Research
Publisher
Springer Science and Business Media LLC
Published
2007-06-12
Volume
17
Issue
3
Pages
317-335
ISSN
  • 0962-8819 (ISSN-L)
  • 1573-9368
DOI
10.1007/s11248-007-9103-1
OpenAlex
W2093230020
Cited by
105
References
36
Citations by year
2025: 2 · 2023: 3 · 2022: 2 · 2021: 1 · 2019: 7 · 2018: 2 · 2017: 2 · 2016: 4 · 2015: 5 · 2014: 3 · 2013: 6 · 2012: 15
FWCI
15.37
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • Transgenic Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural safety and regulations
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Crop Yield and Soil Fertility
Keywords
isolation distance, transgenic maize, genetically modified crops, cross-fertilization, gene flow, corn silage, grain maize, Swiss agriculture
MeSH terms
Agriculture, Chimera, Containment of Biohazards, Zea mays, Crosses, Genetic, Feasibility Studies, Fertilization, Geography, Switzerland, Crops, Agricultural, Plants, Genetically Modified, Pollination

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