This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, a team from the Czech Republic and Germany describes horizontal gene transfer in plants from different grass families. With targeted PCR screening on 16 barley plants, the researchers found evidence of nuclear ribosomal RNA genes that appeared to originate in plants from a lineage that split from the barley plant family roughly 60 million years ago.

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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.

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

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