Beware the new ‘Breakthrough’ Transgenic Mosquitoes

 

 
 

GMO MOSQUITO copyMosquitoes engineered with a jumping gene vector to express a DNA-cutting enzyme produce >95 % male offspring; unfortunately both enzyme and vector target genomes of diverse species from slime moulds to humans.

Dr. Mae Wan Ho

Institute of Science in Society

This commentary has been sent to the editors of the journal Nature Communications, inviting them and the researchers who have reported the creation of the new transgenic mosquitoes in the journal to reply.

A good trick but no consideration of risks

A team led by Andrea Crisanti at Imperial College London in the UK was widely reported to have made a breakthrough or even a ‘quantum leap’ in creating transgenic mosquitoes that could eradicate malaria [1]. Unfortunately, it is potentially the most hazardous genetically modified organism (GMO) to have been created, and should go no further from the laboratory. The researchers have not considered the risks involved, which would have been obvious from a casual review of existing literature.

Their fast-tracked online report in Nature Communications stated [2]:  “Here we generate a synthetic sex distortion system by exploiting the specificity of the homing endonuclease I-PpoI, which is able to selectively cleave ribosomal gene sequences of the malaria vector Anopheles gambiae that are located exclusively on the mosquito’s X-chromosome. We combine structure-based protein engineering and molecular genetics to restrict the activity of the potentially toxic endonuclease to spermatogenesis. Shredding of the paternal X-chromosome prevents it from being transmitted to the next generation resulting in fully fertile mosquito strains that produce >95 % male offspring.”

READ MORE—–> http://farmwars.info/?p=13155

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