This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, University of Pennsylvania researchers introduce a statistical framework called Canopy, designed to look at tumor evolutionary phylogeny and intra-tumor heterogeneity from SNP and copy number patterns in samples tested by bulk DNA sequencing.

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The Seattle Times writes that pharmacogenomics testing can help choose medications that may work best for people with depression.

Researchers report that deleting one gene from butterflies affects their wing coloration patterns, according to the Washington Post.

In PNAS this week: genome sequencing of weevil symbionts, retinoid X receptor deletion in lung cancer metastasis, and more.

Sequencing could help combat foodborne illnesses, according to a blog post by Food and Drug Administration officials.