Pollen-Mediated Movement of Herbicide Resistance Between Commercial Canola Fields

See allHide authors and affiliations

Science  28 Jun 2002:
Vol. 296, Issue 5577, pp. 2386-2388
DOI: 10.1126/science.1071682

You are currently viewing the abstract.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


There is considerable public and scientific debate for and against genetically modified (GM) crops. One of the first GM crops,Brassica napus (oilseed rape or canola) is now widely grown in North America, with proposed commercial release into Australia and Europe. Among concerns of opponents to these crops are claims that pollen movement will cause unacceptable levels of gene flow from GM to non-GM crops or to related weedy species, resulting in genetic pollution of the environment. Therefore, quantifying pollen-mediated gene flow is vital for assessing the environmental impact of GM crops. This study quantifies at a landscape level the gene flow that occurs from herbicide-resistant canola crops to nearby crops not containing herbicide resistance genes.

  • * To whom correspondence should be addressed. E-mail: mary.rieger{at}

View Full Text

Stay Connected to Science