This Week in PNAS

A research team from New Zealand, South Africa, and the US has sequenced the mitochondrial genomes of four Polynesian individuals believed to be among the first people to settle in New Zealand an estimated 750 years ago. As they report in the early, online edition of the Proceedings of the National Academy of Sciences, the researchers used DNA from ancient remains found at a site called Wairau Bar on the northeastern coast of New Zealand's south island.

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A new study finds that a placental protein linked with preeclampsia can be targeted by RNA silencing, according to the New Scientist.

A settlement is expected in a Duke University lawsuit hinging on using falsified data to win grants, Retraction Watch and Science report.

In PNAS this week: approach for analyzing the expression of endogenous retroviruses, circular RNAs that influence host-virus interactions, and more.

A phylogenetic analysis finds that the rare hemimastigotes form their own supra-kingdom, CBC reports.