Rethinking Extinction

Ryan Phelan, who pioneered direct-to-consumer genetic testing by founding DNA Direct in 2005, has taken on a new challenge — resurrecting extinct species via genetic technologies. As executive director of Revive and Restore, Phelan is leading an effort to "de-extinct" species, starting with the passenger pigeon.

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Technology Review reports that researchers in the US have used CRISPR to modify a number of human embryos.

By introducing genes from butterfly peas and Canterbury bells, researchers in Japan have developed a blue chrysanthemum, according to NPR.

Plant researchers plan to sequence some 10,000 samples that represent the major plant clades, ScienceInsider reports.

In Nature this week: a Danish reference genome, and more.