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 report highlights the potential threats posed by advances in synthetic biology, NPR reports.

A Bloomberg reporter tried to get her genetic data deleted, but found it's not so simple to do.

Johns Hopkins University's Steven Salzberg and his colleagues have come up with a new estimate for the number of human genes, Nature News reports.

In Genome Research this week: study of intra-tumor heterogeneity, workflow resources for EPIGEN-Brazil, and more.