This Week in PNAS

In the PNAS Early Edition this week, investigators at the DDC Clinic for Special Needs Children in Middleton, Ohio, "describe an autosomal recessive condition characterized with cerebral vasculopathy and early onset of stroke in 14 individuals in Old Order Amish." Using candidate gene sequencing, they found that the condition is caused by a homozygous mutation in the SAMHD1 gene.

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Labs in the US and South Korea are hoping to bring the woolly mammoth back from beyond extinction, Newsweek writes.

Geneticist Adam Rutherford speaks with National Geographic about paleogenetics, race, and more.

Researchers link genetic links between education and smoking and longevity.

In PNAS this week: influence of gene environment interactions on polygenic traits, epigenetic features affecting fruit fly foraging, and more.