js is correct. The trait is a bacterial trait transferred into corn.
Genetic engineering is intelligent designing, but it is not natural. If Creationists want to say we're all not natural, then I would like to hear it. But GM corn is no different than my new Welsh terrier puppy. He's the same species as my golden retriever, but obviously phenotypically different. Man has been altering agro crops and animals for thousands of years, "designing" strains with traits for particular purposes. It is not irreducibly complex since the traits are all natural in some way and just combined in different ways to form a more desirable product. The GM corn is just the next step - mixing traits between species instead of within the same species (like my dogs).
It's a cloned gene inserted into a foreign species.