Search Results for: Rapeseed
Relative stability of transgene DNA fragments from GM rapeseed in mixed ruminal cultures
Abstract: The use of transgenic crops as feeds for ruminant animals has prompted study of the possible uptake of transgene fragments by ruminal micro-organisms and/or intestinal absorption of fragments surviving passage through the rumen. The persistence in buffered ruminal contents of seven different recombinant DNA fragments from GM rapeseed expressing the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) transgene …
Increased fitness of transgenic insecticidal rapeseed under insect selection pressure
Abstract: Rapeseed Brassica napus L. transgenic for a Bacillus thuringiensis (Bt) transgene was developed and was shown to be insecticidal towards certain caterpillars including the diamondback moth Plutella xylostella L. and the corn earworm Helicoverpa zea Boddie. To simulate an escape of the transgenics from cultivation, a field experiment was performed in which transgenic and …
Environmental and agronomic impact of the herbicide tolerant GM rapeseed
Abstract: The introduction of genetically modified herbicide tolerant rapeseed has raised questions concerning the possible transfer of transgenes into wild relatives or neighbouring fields with similar crops. Pollen of rapeseed can be spread in the area and if a non-GM crop is fertilised by GM pollen, some percentage of the collected seed product will contain …
Determination of DNA traces in rapeseed oil
Abstract: Today, genetically modified oilseeds are commercially available. Consumer protection as well as product safety demand analytical methods for the identification of products which have been genetically manipulated. By means of a technique which incorporates polymerase chain reactions, deoxyribose nucleic acid (DNA) fragments have been identified in oil samples from Brassicca napus. DNA fragments were …
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Unexpected diversity of feral genetically modified oilseed rape (Brassica napus L.) despite a cultivation and import ban in Switzerland
Abstract: Despite cultivation and seed import bans of genetically modified (GM) oilseed rape (Brassica napus L.), feral GM plants were found growing along railway lines and in port areas at four sites in Switzerland in 2011 and 2012. All GM plants were identified as glyphosate-resistant GM event GT73 (Roundup Ready, Monsanto). The most affected sites …
Bt crops: predicting effects of escaped transgenes on the fitness of wild plants and their herbivores
Abstract: One prominent concern about genetically modified crops is the possibility of environmental impacts from the movement of fitness-enhancing traits to wild plant populations. Decisions to deregulate Bt crops in the USA have relied strongly on arguments that these crops will not interbreed with wild relatives in the permitted growing regions. Limited attention therefore has …
Dispersal and persistence of genetically modified oilseed rape around Japanese harbors
Abstract: BACKGROUND, AIM, AND SCOPE: The possibility of gene transfer from genetically modified oilseed rape (OSR) to its cultivated or wild relatives is of concern since its commercial cultivation, because of its potential weediness and impact on the environment. Introgression of modified genes can affect conservation of agricultural crops, because there are many cultivars and …
Hybridization between transgenic Brassica napus L. and its wild relatives: Brassica rapa L., Raphanus raphanistrum L., Sinapis arvensis L., and Erucastrum gallicum (Willd.) O.E. Schulz
Abstract: The frequency of gene flow from Brassica napus L. (canola) to four wild relatives, Brassica rapa L., Raphanus raphanistrum L., Sinapis arvensis L. and Erucastrum gallicum (Willd.) O.E. Schulz, was assessed in greenhouse and/or field experiments, and actual rates measured in commercial fields in Canada. Various marker systems were used to detect hybrid individuals: …
Elicitation of expert judgments of uncertainty in the risk assessment of herbicide-tolerant oilseed crops
Abstract: One of the lay public’s concerns about genetically modified (GM) organisms (GMO) and related emerging technologies is that not all the important risks are evaluated or even identified yet–and that ignorance of the unanticipated risks could lead to severe environmental or public health consequences. To some degree, even the scientists who participated in the …
Determination of anti-nutrients in genetically modified crops
Abstract: OBJECTIVE. In order to assess the safety of genetically modified crops, the anti-nutrients were determined in these novel crops and compared with their parental lines. METHODS. Five kinds of crops (rice, maize, soybean, cottonseed and rapeseed) from domestic and foreign companies were collected and the contents of anti-nutrients for each kind were analyzed. These …
Studies on a new group of biodegradable surfactants for glyphosate
Abstract: The effectiveness of a homologous series of biodegradable rapeseed oil derivatives (triglyceride ethoxylates; Agnique RSO series containing an average of 5, 10, 30 and 60 units of ethylene oxide (EO) as adjuvants for foliage-applied, water-soluble, systemic active ingredients was evaluated employing glyphosate as an example. Previous experiments had revealed that the surfactants used are …
Nutritional assessment of genetically modified rape seed and potatoes, differing in their output traits
Abstract: Substantial equivalence is widely accepted as assessment of feeds from genetically modified plants without changes in the composition. But this concept is not adequate for those with output traits, especially concerning their nutritive feeding value. The objective of this study is to evaluate rapeseed and potatoes belonging to the second generation of GM-plants… Although …
