This Week in Nature

In this week's Nature, a team of British scientists publishes a genomic analysis of European ash trees (Fraxinus excelsior), providing clues as to why the British variant of these trees may be less susceptible to a fungal disease — called ash dieback — currently affecting much of the species. The team sequenced the genomes of one British ash tree and 37 others from throughout Europe, then compared the findings to the DNA sequences of 10 other plant species.

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.