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Jumping genes

Genes introduced into genetically modified plants do jump species into
bacteria in the guts of animals eating the plants. Hans-Hinrich Kaatz and
colleagues at Jena University in Germany collected young bees that ate pollen
from rapeseed containing a gene for resistance to the herbicide glufosinate.
They found the gene in the DNA of bacteria and yeast taken from the bees鈥� guts.
These microorganisms also survived exposure to glufosinate in culture,
suggesting the resistance gene may be expressed. Kaatz cautions that the team
has not yet found proof of expression.