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Success with 'cisgenics' in forestry offers new tools for biotechnology
Date:6/8/2010

s back at least to the late 1800s. It's the basis of all varieties of plants that form the backbone of world agriculture. And the same basic mechanism is at work with cisgenics, except it's done with a much higher degree of genetic understanding, using genome and biotechnology techniques of which Charles Darwin and early plant breeders never would have dreamed.

Strauss believes that the more natural process and greater specificity of cisgenic biotechnology may help transcend some of the costly, time-consuming and cumbersome regulatory hurdles that have held back this science in forestry, agriculture and other fields.

"With cisgenics, you know exactly what gene you're picking, what you're putting in, and it's a process that is similar to what happens naturally during crop breeding and evolution," Strauss said. "Our genetic tools just make the process more precise, and we do it faster. We believe that this will help address some people's concerns, and that regulatory agencies may soon view this quite differently than the type of genetic modification done with conventional transgenics.

"We're not trying to insert genes from a fish into a strawberry here," Strauss said. "We're taking a gene from a poplar tree and putting it back into a poplar tree. That's easier for a lot of people to accept, and scientifically we believe such approaches should be exempt from the regulatory reviews required for most transgenic crops. "

Genetic analysis of natural variation in plant traits provide important clues for cisgenic approaches, Strauss said. In any group of plants, some might grow taller or better resist disease than others. So once researchers know what genes are controlling growth and disease resistance, they can take them from one plant and put them back into the same or closely related species, and amplify or attenuate the desired characteristic.

"That is conceptually the same thing we've been doing in conventional plant breed
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Contact: Steven Strauss
steve.strauss@oregonstate.edu
541-737-6578
Oregon State University
Source:Eurekalert

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