they rebelled. they evolved. and they have a plan.
Scientists announced a bold step Thursday in the enduring quest to create artificial life. They've produced a living cell powered by manmade DNA.
Maryland genome-mapping pioneer J. Craig Venter said his team's project paves the way for the ultimate, much harder goal: designing organisms that work differently from the way nature intended for a wide range of uses.
"This is the first self-replicating species we've had on the planet whose parent is a computer," Venter told reporters.
And the report, being published Friday in the journal Science, is triggering excitement in this growing field of synthetic biology.
"It's been a long time coming, and it was worth the wait," said Dr. George Church, a Harvard Medical School genetics professor. "It's a milestone that has potential practical applications."
Scientists for years have moved single genes and even large chunks of DNA from one species to another. At his J. Craig Venter Institute in Rockville, Md., and San Diego, Venter's team aimed to go further. A few years ago, the researchers transplanted an entire natural genome — the genetic code — of one bacterium into another and watched it take over, turning a goat germ into a cattle germ.
Next, the researchers built from scratch another, smaller bacterium's genome, using off-the-shelf laboratory-made DNA fragments.
Friday's report combines those two achievements to test a big question: Could synthetic DNA really take over and drive a living cell? Somehow, it did.
"This is transforming life totally from one species into another by changing the software," said Venter, using a computer analogy to explain the DNA's role.
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