This Week in PNAS

In a study slated to appear in the early, online edition of the Proceedings of the National Academy of Sciences this week, researchers from Stanford and Yale Universities explore the extent to which somatic genetic variation occurs in tissues from the same individual. Using high-resolution array comparative genomic hybridization, the researchers tested for CNVs in multiple tissue types from six individuals, post-mortem.

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In a survey, about half of Canadian government scientists say they still feel as though they cannot speak freely, ScienceInsider reports.

The Atlantic reports that biohacker Josiah Zayner regrets injecting himself with the CRISPR gene-editing tool on stage.

Clinicians in China are moving ahead with a number of CRISPR trials, NPR reports, as the US embarks on its first.

In Nature this week: genomic approaches applied to study Neolithic and Bronze Age Europeans, and more.