2010-02-03

USDA Weighs Genetic Engineering Commercial Forests. By Paul Voosen, Greenwire, January 29, 2010. "While the practice of splicing foreign DNA into food crops has become common in corn and soy, few companies or researchers have dared to apply genetic engineering to plants that provide an essential strut of the U.S. economy, trees. But that will soon change. Two industry giants, International Paper Co. and MeadWestvaco Corp., are planning to transform plantation forests of the southeastern United States by replacing native pine with genetically engineered eucalyptus, a rapidly growing Australian tree that in its conventional strains now dominates the tropical timber industry. The companies' push into genetically modified trees, led by their joint biotech venture, ArborGen, looks to overcome several hurdles for the first time. Most prominently, they are banking on a controversial gene splice that restricts trees' ability to reproduce, meant to allay fears of bioengineered eucalyptus turning invasive and overtaking native forests... Yet many questions remain about the effectiveness of the fertility system used by ArborGen, which, according to leading scientists, has never been rigorously studied in multiyear trials to prove that it can effectively control plants' spread. More research must be conducted before such systems are relied upon to restrict pollen and seed spread, they say... Given the uncertainty involved, however, the Nature Conservancy has recommended to USDA that ArborGen be allowed fewer acres and trees to flower, and none in Florida."

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