By Andrea Anderson

NEW YORK (GenomeWeb News) – Middle Eastern grey wolves appear to represent the source of genetic diversity in domestic dog breeds, according to a genotyping study appearing online today in Nature, suggesting dogs originated in that part of the world.

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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.