This Week in PNAS

Along with economic hardships, a new study suggests the recent recession brought a rise in harsh parenting by mothers — particularly by those experiencing sharp macroeconomic shifts who also carried a specific version of the gene DRD2.

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Researchers report that paternally inherited genes are more likely to be expressed in mice.

In PNAS this week: Akt3 amplification in glioma progression, Tibetan Plateau frog genome, and more.