Super Sunflowers--Stopping the Rot?

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Science  23 May 2003:
Vol. 300, Issue 5623, pp. 1243-1244
DOI: 10.1126/science.1085576

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One of the major concerns about genetically modified crops is that the transgene could escape into wild plant populations, imbuing them with greater reproductive fitness and resulting in so-called "superweeds." In his Perspective, Heritage discusses new work (Burke and Rieseberg) that takes a first step toward answering the question of whether transgenes confer a reproductive fitness advantage on host plants.