This Week in PNAS

In this week's PNAS Early Edition, researchers at Tufts University School of Medicine, along with their colleague at Harvard Medical School, show that "minimization of the Legionella pneumophila genome reveals chromosomal regions involved in host range expansion." By screening for genes necessary for optimal growth in nutrient-rich medium, the team found that the "L.

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A new study in JAMA finds that genetic tests might not be able to determine what diet is right for someone seeking to lose weight.

A genome-wide association study that linked common genetic variants to salivary gland carcinoma risk has been retracted, according to Retraction Watch.

Vampire bats' ability to live off blood is etched in their genomes and gut microbiomes, the Scientist reports.

In Genome Biology this week: peopling of the Sahara, epigenetic reprogramming analysis of liverwort, and more.