Dangerous Liaisons?: When Cultivated Plants Mate with Their Wild Relatives

With the advent of genetic engineering, "designer" crops might interbreed with natural populations. Could such romances lead to the evolution of "superweeds", as some have suggested? But haven't crops had sex with wild plants in the past? Has such gene swapping occurred without consequences? And if consequences have indeed occurred, what lessons can be gleaned for engineered crops?

In Dangerous Liaisons? Norman Ellstrand examines these and other questions. He begins with basic information ab...