This Week in PLoS

In PLoS ONE this week, Eric Schadt and his colleagues quantified the extent of population stratification in Caucasian American, African American, and Hispanic American populations. After genotyping and measuring gene expression in liver tissue from nearly 1,100 individuals, the team came up with a method for detecting this population stratification and also examined how it affects expression quantitative trait loci in genome-wide association studies.

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Sequencing could help combat foodborne illnesses, according to a blog post by Food and Drug Administration officials.

Popular Mechanics reports that Caltech researchers have built a prototype nanobot using DNA.

The Sacramento Bee writes that direct-to-consumer genetic testing connected a woman to sperm donor-conceived half siblings.

In PLOS this week: gene expression catalog for sheep, viral diversity among respiratory samples from camels, and more.