Human safety and genetically modified plants: a review of
antibiotic resistance markers and future transformation selection technologies.
In previous posts for our Plasmids 101 series, we examined a number of important plasmid elements — promoters, origins of replication, protein tags, and
antibiotic resistance markers (just to name a few).
They also say they are concerned about
the antibiotic resistance marker gene that the wheat contains, and assert that the researchers «are openly releasing a synthetic version of a compound that... has had no long - term health safety tests whatsoever for human consumption, or for its impacts on non-target species.»
Not exact matches
As a
marker for successful insertion, the researchers also put a gene encoding
antibiotic resistance into the plasmid.
The researchers began with a simple
marker gene that confers
resistance to the
antibiotic neomycin in bacteria.
Smith avoids mentioning expert advice and evidence that contradicts his assertions about
antibiotic resistance, and does not provide access to the detailed and extensive deliberations that led to approvals of crops having
antibiotic markers (Bennett and others 2004.
Some transgenic crops contain
antibiotic resistance genes as selection
markers that were used during the process of transgene construction.
Our gut already contains billions of bacteria carrying
resistances to kanamycin and ampicillin, the two most commonly used
antibiotic marker genes in GM crops.