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This Week in PNAS

In the PNAS Early Edition this week, the University of Chicago's Yong Woo and Wen-Hsiung Li describe the relationships among the "gene clustering pattern, promoter architecture, and gene expression stability in eukaryotic genomes." In a budding yeast model, Woo and Li found that "genes with a short upstream distance tend to have low gene expression variability, and their [promoters are] flanked by strongly positioned nucleosomes and [tend] to have low nucleosome occupancy." The pair also reports that head-to-head genes, when compared with head-to-tail genes, show

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US National Institutes of Health Director Francis Collins says he will avoid male-only speaker panels.

Two patients fell ill, and one subsequently died, following a fecal microbiome transplant that harbored multi-drug-resistant bacteria, according to the New York Times.

Technology Review reports that eGenesis is testing whether organs from genetically modified pigs can be transplanted into monkeys.

In Science this week: almond reference genome, and more.