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In this week's Science, an international research team uses genomic data to show that the agricultural use of maize throughout the highlands of the US likely occurred due to propagation of varieties with earlier flowering times. Although maize became a staple crop in the southern lowlands of the US when it was introduced from Mexico about 4,000 years ago, it took about 2,000 more years until it was widely grown at higher elevations.

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At a meeting this week, researchers and others discussed the regulatory oversight needed for germline genome editing.

The US Food and Drug Administration has asked questions about Myriad Genetics' GeneSight test, according to Bloomberg.

Researchers report that neutrophil extracellular traps appear to binds gallstones together, according to New Scientist.

In Science this week: approach to infer genotype-by-environment interaction from genetic variants associated with phenotypic variability, and more.