This week, Applied Biosystems launched its line of Power SYBR green reagents for real-time PCR gene-expression applications. The launch is the first major introduction of consumable products since ABI officials started saying the firm would place greater emphasis on the sale of such products, amid slumping sales for certain DNA sequencing and mass spectrometry instrument platforms (see BioCommerce Week 4/14/2005 ).

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Senator Elizabeth Warren (D-Mass.) has released the results of a genetic ancestry analysis, the Boston Globe reports.

Retraction Watch's Ivan Oransky and Adam Marcus report that Harvard Medical School and Brigham and Women's Hospital have recommended that more than 30 papers from a former researcher be retracted.

Thomas Steitz, who won the 2009 chemistry Nobel Prize for his ribosome work, has died, the Washington Post reports.

In PLOS this week: mechanisms for genes implicated in coronary artery disease, rumen microbes and host genetics influence cow methane production, and more.