By Susan Milius
On multiple occasions, genes from newfangled corn produced via bioengineering have slipped into the traditional races of maize grown in southern Mexico.
That’s one of the conclusions of the first scientific paper documenting transgenic corn leaking genes into old maize varieties. Such leaks seem “relatively common,” report David Quist and Ignacio H. Chapela of the University of California, Berkeley in the Nov. 29 Nature.