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Transgenics transformed
Date:10/18/2007

r 10, 2006, the United States Patent and Trademark Office issued Chromatin patent No. 7,119,250, which extends the exclusive right to use these mini-chromosomes to all plants. This includes "a crop plant," the patent states, "a commercial crop plant, a vegetable crop plant, a fruit and vine crop plant, a field crop plant."

On May 22, 2007, biotech giant Monsanto Company purchased non-exclusive rights to use Chromatin's mini-chromosome stacking technology in corn, cotton, soybeans, and canola. Chromatin is in discussions to license this technology to other companies, potentially capturing most of the US corn market.

The timing was ideal. The US, in order to limit oil imports and reduce greenhouse gasses, hopes to double its use of ethanol in fuels by 2012 and to double that twice over by 2022. Because of increased demand, corn prices rose this summer by about 50 percent over last year.

Preuss and colleagues hope to apply the technology to other plants, including sugar cane and switch grass, which could also serve as biofuel sources. They are also looking at other applications and expanding the gene carrying capacity of their mini-chromosomes. They have successfully delivered mini-chromosomes about six times the size of MMC1, suggesting that this platform can carry "a large number of genes."


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Contact: John Easton
john.easton@uchospitals.edu
773-702-6241
University of Chicago Medical Center
Source:Eurekalert

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