This Week in Science

In a paper published online in advance in Science this week, investigators at the Salk Institute for Biological Studies in La Jolla, Calif., and elsewhere report on their examination of "spontaneously occurring variation in DNA methylation in Arabidopsis thaliana plants propagated by single-seed descent for 30 generations." The Salk-led team observed 114,287 CG single-methylation polymorphisms as well as 2,485 CG differentially methylated regions, "both of which show

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360Dx reports that the US Centers for Medicare & Medicaid Services would cover next-generation sequencing-based cancer panel tests.

The Washington Post reports that a meteorologist is being considered as presidential science and technology advisor.

In PNAS this week: precision medicine strategy to screen for disease risk, genome evolution in Haemophilus influenzae, and more.

Researchers have developed a PCR-based assay to gauge whether manatees are present in waters.