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 partially reinstated US travel ban leaves space for uncertainty for researchers, Nature News says.

Researchers find a number of traits differ by sex and could affect mouse model studies, according to Reuters.

Tweaking the skin microbiome could help address some skin conditions, the New York Times reports.

In PNAS this week: DNA methylation profiles of tumor tissue, gene dynamics in prokaryotes, and more.