Fixed-route monitoring and a comparative study of the occurrence of herbicide-resistant oilseed rape (Brassica napus L.) along a Japanese roadside

GM Crops & Food
Toru NishizawaHikaru Saji

Abstract

Previously, we conducted a roadside survey to reveal the occurrence of genetically modified (GM) oilseed rape along a Japanese roadside (Route 51). In this study, we performed successive and thorough fixed-route monitoring in 5 sections along another road (Route 23). Oilseed rape plants were detected on both sides of the road in each section between autumn 2009 and winter 2013, which included 3 flowering seasons. In four sections, more plants were found on the side of the road leading from the Yokkaichi port than on the opposite side. In the fifth section, the presence of clogged drains on the roadside, where juvenile plants concentrated, caused the opposite distribution: oilseed rape predominantly occurred along the inbound lanes (leading to the Yokkaichi port) in 2010 and 2012. Unlike in our previous survey, glyphosate- or glufosinate-resistant oilseed rape plants were abundant (>75% of analyzed plants over 3 years). Moreover, a few individuals bearing both herbicide resistance traits were also detected in some sections. The spillage of imported seeds may explain the occurrence of oilseed rape on the roadside. The abundance of herbicide-resistant oilseed rape plants may reflect the extent of contamination with GM oilseed rape...Continue Reading

References

Sep 7, 2004·Proceedings. Biological Sciences·Michael J Crawley, Susan L Brown
Jul 11, 2006·Environmental Biosafety Research·Hikaru SajiMasato Nagatsu
Mar 3, 2007·Environmental Biosafety Research·Yasuyuki YoshimuraKazuhito Matsuo
Mar 3, 2007·Environmental Biosafety Research·Mitsuko AonoHikaru Saji
Jul 26, 2007·Conservation Biology : the Journal of the Society for Conservation Biology·Moritz von der Lippe, Ingo Kowarik
Oct 8, 2008·Environmental Science and Pollution Research International·Hauke ReuterBroder Breckling
Jul 10, 2009·Environmental Science and Pollution Research International·Alexis L Knispel, Stéphane M McLachlan
Aug 7, 2013·Environmental Science and Pollution Research International·Mirco HechtClaudia Bagutti
Dec 2, 2014·GM Crops & Food·Stuart J Smyth

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Methods Mentioned

BETA
oilseed rape
PCR

Software Mentioned

Unimog

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