EESC3310 Lecture Notes - Lecture 7: Herbivore, Allelopathy, Parasitism
25 Apr 2017
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Document Summary
Transgene organisms do not pose a significant risk to organisms in the larger ecosystem. ****** the role of precaution in the regulation of transgenic organisms is highly contentious and, to some people, support for precaution symbolizes complete opposition to the use of transgenic organisms. Biggest points: do not know how it will affect outer ecosystems - super unclear on nontarget aspects, and adaptations can mutate and spread or affect other parts of the ecosystem. Resistance occurs quickly when there is strong, uniform selection on a pest population for long periods of time. More than 286 weed biotypes have evolved resistance to various herbicides during the past 30 years. Viruses: moreover, any changes in transmission characteristics resulting from recombination could allow the recombinant virus to colonize hosts that were previously unavailable to the parental virus. Because transgenes are inherited in the same way as naturally occurring genes, they have the potential to persist indefinitely in cultivated or free-living population.
