This Week in Nature

In Nature this week, a Cold Spring Harbor Laboratory-led team publishes an improved maize reference genome, which was assembled and annotated using single-molecule real-time sequencing and high-resolution optical mapping. Relative to the previous reference genome, the new assembly features a 52-fold increase in contig length, as well as significant improvements in the assembly of intergenic spaces and centromeres.

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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.