NEW YORK (GenomeWeb) – Zymo Research announced it has obtained an exclusive licensing agreement for a methylation-based molecular "clock" from the University of California, Los Angeles.

That Horvath Clock, named for its developer and UCLA researcher Steve Horvath, measures methylation based on 353 CpG dinucleotide markers to estimate one dimension of cellular aging. This so-called "DNA methylation age" (DNAm age) is separate from mitotic age and is not a marker of cellular senescence.

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

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

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.