This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, a team from the US and China explore the genome-wide mutation consequences of exposing Escherichia coli bacteria to low doses of an antibiotic called norfloxacin over long periods of time. With the help of whole-genome sequencing, the researchers tracked mutation accumulations in hundreds of replicate E.

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Researchers have sequenced the northern white rhinoceros to gauge whether it could be brought back from the edge of extinction, the New York Times reports.

Bavaria expands its forensic genetic analyses to include DNA phenotyping, raising discrimination concerns.

Tufts University researchers found a role for miRNA in transmitting stress between generations, the Economist reports.

In Science this week: gut microbiome influences liver cancer growth, spread; and more.