Type of Unintended Effect: Environmental/Social/Economic
TYPE OF UNINTENDED EFFECT: Environmental (animals)
Salmon
Genetically modified atlantic salmon/brown trout hybrids have unexpected ecological effects.
TYPE OF UNINTENDED EFFECT: Environmental (plants)
Aspen
Innate immunity is affected in insect-resistant GM aspens.
Bentgrass
Spread of herbicide-resistance from genetically modified creeping bentgrass into the wild.
Canola
Transgenes that have escaped from glyphosate-resistant canola can persist in the wild.
Conventional, certified canola seedlots were contaminated with genetically engineered seeds.
Herbicide-resistant canola volunteers still detected after ten years of stringent control.
Fewer wild bees were observed in glyphosate-resistant canola fields.
Corn (Maize)
Monarch butterfly larvae exposed to anthers from Bt maize ate less and gained less weight.
Byproducts from Bt maize enter streams, and in feeding experiments affected stream insects.
Western corn rootworm not killed by Bt corn in Iowa.
Perspective matters: Bias and conflict of interest in studies about genetically modified organisms.
Cotton
Increased resistance to Bt toxin is found in some populations of cotton bollworm (Helicoverpa zea).
Cotton plants and seeds expressing Bt toxin were found in non-Bt refuges.
Legumes
Rice
Genes escaped from cultivated GM rice to its weedy and wild relatives.
Soy
Sugar beet
Sugar cane
Lectin transgene for stemborer resistance alters growth of sugarcane.
Sunflower
Wild sunflowers with transgene for Bt toxin produced more seeds than normal wild sunflowers.
Wheat
GM wheat outcrosses more often than unmodified wheat of the same varieties.
RNAi interference
Potential unintended effects of RNAi-based insecticidal crops.
Insect resistance
Western corn rootworm not killed by Bt corn in Iowa.
Increasing resistance of pests to genetically modified, insect-resistant Bt crops.
Weed resistance
TYPE OF UNINTENDED EFFECT: Environmental (microorganisms)
Bacteria
Why GM bacteria haven’t succeeded in the real world: It’s the context, not only the genes.
TYPE OF UNINTENDED EFFECT: Environmental (social/economic)
Economics of GMO crops
Adoption of GM Cotton Slowing in West Africa Due to Concerns About Inferior Qualities of Crop.
Farmer stress
Scientific bias
Perspective matters: Bias and conflict of interest in studies about genetically modified organisms.