America facing wheat export crisis as Europe and Japan lead the way in rejecting genetically modified crops

Unapproved genetically modified wheat has been discovered growing in the United States.The revelation is threatening the outlook for U.S. exports of the world's biggest traded food commodity, with importers keenly aware of consumer sensitivity to gene-altered food. The European Union is preparing to test incoming shipments, and will block any containing GM wheat. Chicago Board of Trade wheat futures fell 0.5 percent on Thursday.

Major importer Japan has cancelled a tender offer to buy U.S. western white wheat, while other top Asian wheat importers South Korea, China and the Philippines said they were closely monitoring the situation.