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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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The Washington Post reports that a Russian Academy of Sciences commission has led to the retraction of hundreds of scientific papers.

The Los Angeles Times' Daily Pilot reports the chief executive of Vantari Genetics has pleaded guilty in a kickback scheme.

News 4 Jax reports that a Florida bill to prevent life and long-term care insurers from using genetic information in their coverage decisions has easily passed one committee.

In Science this week: potentially pathogenic mutations found in hematopoietic stem cells from young healthy donors, and more.