By a GenomeWeb staff reporter

NEW YORK (GenomeWeb News) – Aria Diagnostics said today that it has begun a blinded, multicenter clinical trial that will compare its non-invasive prenatal trisomy 21 screening test with standard screening methods.

The company's test, which is still in development, is based on a sequencing-based method that analyzes cell-free DNA in maternal blood to detect fetal chromosomal abnormalities.

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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.