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This Week in PNAS

Using the 18S ribosomal DNA gene as a barcode when looking at environmental samples may miss some members of the communities being tested, according to a study in the early, online edition of the Proceedings of the National Academy of Sciences this week by researchers based in the UK, Italy, Germany, and the US. In particular, authors of the study argue that the 18S marker underestimates the diversity of so-called meiofauna — microscopic invertebrate animals.

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Newsweek discusses the privacy issues raised by digital medicine.

A group of statisticians wants to eliminate researchers' reliance on 'statistical significance,' according to NPR.

In Nature this week: genetic analysis of Anatolian farmers, cotton genome analysis, and more.

Matt Hancock, the UK health secretary, is calling for the swift rollout of predictive genetic tests, the Guardian reports.