Combination Approach of Border Rows and Isolation Distance for Securing Coexistence of Non‐Genetically Modified and Genetically Modified Maize

Langhof, Maren; Gabriel, Doreen; Rühl, Gerhard

doi:10.2135/cropsci2014.07.0523

Cited by 2 publications

(1 citation statement)

References 26 publications

(42 reference statements)

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“…Therefore, the content of airborne pollen decreases with distance from the emitter 36 . Consequently, the out-crossing rate is always highest in the first few meters of a maize recipient field edge facing a maize donor field 37 . This was consistent with the results of many studies, where the frequency of pollen-mediated gene flow from transgenic maize to non-transgenic maize decreased significantly with increasing distance 9 .…”

Section: Isolated Area Bmentioning

confidence: 99%

A new isolation device for shortening gene flow distance in small-scale transgenic maize breeding

Zhang

Huo

Cao

et al. 2020

Sci Rep

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The transmission of pollen is the main cause of maize gene flow. Under the compulsory labeling system for genetically modified (GM) products in China, isolation measures are crucial. At present, there is no effective isolation device for preventing and controlling the short-range flow of GM maize pollen. The purposes of the present experiments were to overcome the deficiencies of existing technology and to demonstrate a new isolation device for decreasing the gene flow distance of GM maize. The isolation device we invented was shown to be more robust than traditional isolation methods, and it can be disassembled and repeatedly reused. The most important point was that the frequency of gene flow could be greatly reduced using this device. When the distance from the isolation device was more than 1 m, the gene flow rate could be decreased to less than 1%, and when the distance from the isolation device was more than 10 m, the gene flow rate could be reduced to less than 0.1%. When the isolation device was adopted to isolate GM maize in conjunction with bagging the tassels of GM maize at the pollination stage, the gene flow could be controlled to less than 0.1% when the distance from the isolation device was more than 1 m. This device was, however, only applicable for small plots and can shorten the isolation distance of GM maize planting and improve the purity of seeds, all while meeting the needs of close isolation breeding. The use of this device represents a feasible method for risk prevention and control of GM crops.

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Section: Isolated Area Bmentioning

confidence: 99%