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A group of researchers report in PLoS Biology that Mycobacterium tuberculosis strains that affect people are more genetically diverse than had been assumed. They studied 7 megabase pairs of DNA sequence data from 108 strains of M. tuberculosis and attribute the diversity to human demographic and migratory events. The authors also say that current human population trends, global travel, urbanization, and population growth, may be contributing to the spread of drug-resistant tuberculosis

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Seven individuals have been named to the President's Council of Advisors on Science and Technology, ScienceInsider reports.

Retraction Watch reports that a series of tweets led to expression of concern for a PLOS Genetics paper, a move the paper's authors disagree with.

Researchers have sequenced pumas from North and South America to enable better identification of inbreeding, Cosmos magazine reports.

In Nucleic Acids Research this week: ways to find cell death or proliferation signatures, Han Chinese population genome database, and more.