This Week in Nature

In Nature Genetics this week, a team from the Chinese Academy of Fishery Sciences reports the genome sequence of the common carp, Cyprinus carpio, which is the world's most farmed species of fish. The researchers sequenced the genomes of 33 fish from four wild populations and six domestic strains. When comparing two common varieties, they found 894 differentially expressed genes, many of which are involved in scale development and pigmentation.

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 Senator Lamar Alexander (R-Tenn.), who chairs the Senate health committee, will be retiring at the end of his term, Stat News reports.

UCSF researchers find that having two X chromosomes may contribute to women's longer lifespans, according to Discover's D-brief blog.

The Wall Street Journal reports on the US Centers for Disease Control and Prevention's use of genetic approaches to study foodborne illnesses.

In PNAS this week: immune cell profiling of wild baboons by social status, metabolomics profiling of esophageal tumors, and more.