President Obama is expected to announce today that he will reverse the limits on federal funding for embryonic stem cell research that were put in place by the Bush administration. According to this New York Times story, an unnamed source "said the president would also speak about a general return to 'sound science' in his administration."

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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.