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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The US Food and Drug Administration has approved Kite Pharmaceuticals' CAR T-cell therapy for large B-cell lymphomas, the New York Times reports.

Kaiser Health News reports that gene therapies could cost more than a million dollars.

Worcester Polytechnic Institute researchers have received a grant to combine biology and computer science for high school students.

In Nature this week: variants associated with obsessive-compulsive disorder, review of key CRISPR enzymes, and more.