There was a lot of media hype about that sort of thing 10 or 15 years ago. Indeed, I suppose there were experiments to evaluate different types of genes in terms of things like cold tolerance. But on a much more practical and realistic level, I must emphasize that no commercial product with animal genes in plants has ever been made or commercialized.
What the newer genomics and systems-biology sciences allow researchers and the community to do is to investigate the genetic make-up of a crop, be it soybean or canola, and to be able to understand all the genes involved, to tweak and manage that so that you can use the genetic information that's there and point it in a direction to get better heat tolerance, better drought tolerance.
So in the long term, I don't think you're going to see the idea of having to move a gene from a tropical plant into a crop. I think it's more understanding the genetic base of the crop and making those modifications accordingly. This will allow perhaps a greater level of comfort to society over time.