First Successful Gene Drive in Mammals

Researchers use a CRISPR-Cas9 strategy to expand a desired trait from 50 percent of mouse pups to about 72 percent.

Written byAbby Olena, PhD
| 4 min read

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ABOVE: A representative litter of pups. A white coat indicates that a certain gene had been disrupted by CRISPR-Cas9.
ADAPTED FROM GRUNWALD ET AL., NATURE, 2019.

Gene drive, a genetic engineering technology that pushes offspring to inherit a particular allele from one parent more frequently than normal, has already worked in insects. Now, researchers show it can succeed in vertebrates too. In a study published today (January 23) in Nature, the authors describe an approach that uses CRISPR-Cas9 to alter the female mouse germline and drive the expression of white fur and a red fluorescent protein.

“It’s the first paper robustly describing gene drive work in mammals,” says Bruce Whitelaw, a researcher at the University of Edinburgh who was not involved in the study.

According to coauthor Kimberly Cooper, an evolutionary developmental biologist at the University of California, San Diego (UCSD), the project got started because she and her team wanted ...

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  • abby olena

    As a freelancer for The Scientist, Abby reports on new developments in life science for the website. She has a PhD from Vanderbilt University and got her start in science journalism as the Chicago Tribune’s AAAS Mass Media Fellow in 2013. Following a stint as an intern for The Scientist, Abby was a postdoc in science communication at Duke University, where she developed and taught courses to help scientists share their research. In addition to her work as a science journalist, she leads science writing and communication workshops and co-produces a conversational podcast. She is based in Alabama.  

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