Monsanto will go ahead seeking approval for genetically modified wheat in Canada, despite threats of legal action and fears that approval could ruin the market for Canadian wheat.The company was responding to demands from the Canadian Wheat Board that it withdraw its wheat, engineered to withstand Roundup weedkiller.</p><p><a href="http://www.reuters.com/newsArticle.jhtml?type=topNews&storyID=2990178">Reuters</a>