This Week in Nature

In Nature this week, a team from the Georgia Institute of Technology reported data suggesting that homologous recombination between RNA and DNA may be far more widespread than previously believed, making RNA a key player in genomic stability and plasticity. Generally, homologous recombination involves the exchange of genetic information between similar DNA molecules.

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Senator Elizabeth Warren (D-Mass.) has released the results of a genetic ancestry analysis, the Boston Globe reports.

Retraction Watch's Ivan Oransky and Adam Marcus report that Harvard Medical School and Brigham and Women's Hospital have recommended that more than 30 papers from a former researcher be retracted.

Thomas Steitz, who won the 2009 chemistry Nobel Prize for his ribosome work, has died, the Washington Post reports.

In PLOS this week: mechanisms for genes implicated in coronary artery disease, rumen microbes and host genetics influence cow methane production, and more.