This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, Los Alamos National Lab researchers explore phylogenetic patterns that may appear when trying to untangle disease transmission dynamics in an epidemiological investigation. The team used a mathematical framework called coalescent theory to come up with half a dozen phylogenetic tree topologies using HIV-1 sequences from two individuals suspected of being epidemiologically linked.

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Cancer researcher loses funding under new Wellcome Trust anti-bullying policies, the Guardian reports.

In Science this week: International Wheat Genome Sequencing Consortium publishes the bread wheat cultivar Chinese Spring reference genome, and more.

At his FDA Law Blog, Jeffrey Gibbs discusses FDA's technical assistance for the draft Diagnostic Accuracy and Innovation Act.

The New York Times reports that genetic testing has uncovered unfaithful penguins at a Utah aquarium.