This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, an international team led by investigators in New Zealand presents findings from metagenomics-based functional analyses of soil and rock samples from an ice-free area in the Antarctic. The researchers used GeoChip — an array targeting variants in genes from hundreds of functional categories — in their assessment of samples from McKelvey Valley, one of the Antarctic's so-called McMurdo Dry Valleys.

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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.