This Week in PNAS

Researchers from the University of Rhode Island track population structure and processes influencing genetic diversity in Thalassiosira rotula diatoms, looking at half a dozen microsatellite markers in T. rotula representatives collected at sites around the world.

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Lawmakers have asked four direct-to-consumer genetic testing companies to explain their privacy policies and security measures, according to Stat News.

The Trump Administration has proposed a plan to reorganize the federal government, the Washington Post reports.

In Science this week: genetic overlap among many psychiatric disorders, and more.

The Economist writes that an increasing number of scientific journals don't do peer review.