This Week in PLOS

In PLOS Genetics, the University of Chicago's Anna Di Rienzo and collaborators from the US and Ethiopia report on potential genetic contributors to thin air adaptation in two Ethiopian populations. From genome-wide SNP array data for individuals from Amhara or Oromo populations living at high and low altitudes, the team determined that the Ethiopian populations do not seem to share high altitude hemoglobin adaptations reported in Tibetan populations in the past.

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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.