This Week in PLOS

Researchers from Portugal, reporting in PLOS Pathogens, used genome sequencing as part of their effort to understand adaptations leading to pathogenesis in Escherichia coli. Together with mathematical modeling and experiments gauging the bug's evolution and physical features, the team's genome sequence assessments suggested that the presence or absence of a lone transposable element can spell the difference between commensal and virulent E.

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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.