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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York University researchers find genomic evidence of inbreeding in the yellow-banded bumblebee, according to Reuters.

In its survey of US adults, the Pew Research Center finds that views on the genetic engineering of animals depend on why it's done.

The Scientist reports agricultural researchers are working on a gene-stacking tool.

In Nature this week: statistical method for overcoming case-control imbalance issues, and more.