This Week in PNAS

Investigators at Duke University report in a PNAS paper published online in advance this week on their use of human artificial chromosome assembly assays, with which they show that "both D17Z1 and D17Z1-B can support de novo centromere assembly independently." This study, the authors say, illustrates the "presence of centromeric epialleles on an endogenous human chromosome" and points to the "genomic complexities underlying the mechanisms that determine centromere identity in h

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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.

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