This Week in Science

In commentary appearing in this week's Science, US National Institutes of Health Director Francis Collins discusses the "severe budget constraints" his agency is set to face. "Americans need to know that today's basic research is the engine that powers tomorrow's therapeutic discoveries," Collins says. "They need to know that basic research is the type of science that the private sector, which requires rapid returns on investment, cannot afford to fund."

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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.