This Week in PNAS

In the early edition of PNAS this week, Sarah Tishkoff, Carlos Bustamante, and their team examined population structure and ancestry patterns in West African and African American populations. The researchers incorporated new and old genotyping data to look at genetic patterns in a dozen African populations and 365 African Americans. In the African populations, language and geography usually corresponded to genetic patterns.

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.