Scientists at the University of Arkansas identified genes from GM-canola in wild plant populations in the United States. Wild canola was found at almost half of the tested sites along the highway. About 83 percent of the weedy canola contained transgenic material. Wild canola contained herbicide resistance genes from genetically modified canola. Further, some of the plants contained resistance to both herbicides, a combination of transgenic traits that had not been developed in canola crops. "That's not commercially available. That has to be happening in the wild," said Schafer, from the University of Arkansas.