This Week in Science

In this week's Science, a team of US and Canadian scientists reports how a specific gene variant contributes to inflammatory bowel disease, opening the door to a potential new treatment strategy for some patients. A variant of the gene C1orf106 is known to be associated with increased risk of IBD in humans, although the exact reasons were unclear.

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Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.