In Genome Research this week, an international team of researchers reports on its reconstruction of ancient mitochondrial DNA links between Europe and Africa. The team analyzed 69 mitochondrial genomes belonging to various sublineages of macro-haplogroup L from a wide range of European populations.

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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.