In a paper published online in advance in Genome Biology this week, a trio of investigators at the University of Michigan discusses how piRNAs promote genome surveillance in Caenorhabditis elegans "by triggering siRNA-mediated silencing of non-self DNA in competition with licensing programs that support endogenous gene expression."

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US National Science Foundation is continuing its responsible research conduct training policy despite its flaws, ScienceInsider reports.

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