This Week in PLOS

In PLOS Genetics, researchers from the UK and the US describe findings from a genetic study of Plasmodium falciparum populations in Thailand, Cambodia, Gambia, and Malawi. Using linkage disequilibrium patterns for 86,000 SNPs in 459 P. falciparum isolates from the four countries, the team tracked down genes under positive selection, including chloroquine-resistance loci in P.

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The apple has traveled westward and eastward along the Silk Road, according to a new genetic analysis.

In Nature this week: GWAS data used to reposition drugs for psychiatric use, and more.

Genetic disease risk information doesn't always spur people to make healthy lifestyle changes, according to the Associated Press.

A University of California, San Diego-led team has used liquid biopsies to uncover possible treatments for patients with cancers of unknown primary.