This Week in PLOS

In PLOS Genetics, Canadian researchers explore contributions that de novo mutations make to cases of severe or more moderate intellectual disability. Through exome sequencing on 41 individuals with intellectual disability and their unaffected parents, the team narrowed in on 81 de novo mutations that appear to impact protein-coding sequences or splice sites.

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The ancestors of the Arizona bark scorpion and other scorpions and spiders underwent whole-genome duplication, KJZZ reports.

A cryptographic approach could help researchers keep genomic data private while researchers analyze it, Scientific American reports.

Andy Page, the former president of 23andMe, has joined a diabetes-management startup, according to CNBC.

In Cell this week: regulatory changes in pancreatic cancer, metabolic shifts in Alzheimer's disease, and more.