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Radish as a Model System for the Study of Engineered Gene Escape Rates Via Crop‐Weed Mating
Author(s) -
KLINGER TERRIE,
ELAM DIANE R.,
ELLSTRAND NORMAN C.
Publication year - 1991
Publication title -
conservation biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.2
H-Index - 222
eISSN - 1523-1739
pISSN - 0888-8892
DOI - 10.1111/j.1523-1739.1991.tb00360.x
Subject(s) - outcrossing , weed , crop , gene flow , biology , agronomy , genetically modified crops , mating , mating design , gene , transgene , botany , ecology , genetic variation , hybrid , heterosis , genetics , pollen
Engineered genes in transgenic crops may escape into the ambient environment via crop‐weed hybridization However, natural crop‐weed muting rates (gene flow) are largely unknown We measured mating between wild and cultivated radishes in an experiment that simulated natural stands around seed multiplication plots. We used a genetic marker to identify, crop‐weed muting events. Although weeds at the cultivar plot margin (1 m distance) received much more gene flow than distant plants, detectable gene flow occurred at our most distant site (1000 m). For insect‐pollinated outcrossing crops like radish, strategies other than distance must be employed to ensure complete isolation.