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In Science this week, an international team led by investigators at the University of Houston report the effects of epistatic interactions among mutations on fitness "for the first five mutations to fix in an experimental population of Escherichia coli." The team says that "epistasis depended on the effects of the combined mutations," such that "the larger the expected benefit, the more negative the epistatic effect." As a result, the team says that in its study, epistasis "tended to produc

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Reuters reports that Germany is seeking to sequence 5 percent of patient samples that test positive for SARS-CoV-2.

23andMe and Medscape say primary care physicians are increasingly more comfortable with discussing direct-to-consumer genetic testing results.

The publisher of the Science family of journals will allow some authors to place peer-reviewed versions of their papers into publicly accessible repositories.

In Science this week: analysis of genome-wide association studies of chronic kidney disease, and more.