In a paper published online in advance in Genome Research this week, a trio of investigators at the University of Chicago describes the genetic architecture of regulatory variation in Arabidopsis thaliana, which it deduced by mapping genome-wide association of gene expression in an F1 hybrid diversity panel.

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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.