This Week in PNAS

In a study slated to appear online this week in the Proceedings of the National Academy of Sciences, researchers from the Rockefeller University used a metagenomic sequencing-based method to find new natural product-producing genes in soil microbial communities. After isolating microbial DNA from a soil sample, the team created a clone library that was then assessed by amplicon sequencing and subsequently compared with known natural product-related genes.

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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.