Some three percent of any given individual's genome is affected by large copy-number changes, writes Washington University School of Medicine in St. Louis' Michael White at Pacific Standard. While most people are just fine, in some cases, he adds, such CNVs can cause problems.

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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.