This Week in PLOS

Researchers from Simon Fraser University, the British Columbia Centre for Excellence in HIV/AIDS, and elsewhere used genotyping and functional comparisons to look at the evolution and persistence of HIV sequences that impact the virus' interaction with human leukocyte antigens (HLA) in infected human hosts over time — work they report in PLOS Genetics.

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A genome-wide association study that linked common genetic variants to salivary gland carcinoma risk has been retracted, according to Retraction Watch.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