By a GenomeWeb staff reporter

NEW YORK (GenomeWeb News) – Problems with a reagent may have affected results from about 100 cancer diagnostics tests, Rosetta Genomics reported on Tuesday after the close of the market.

The affected test is the firm's miRview mets — a molecular test for cancer of unknown primary patients that identifies the tissue of origin of metastatic tumors.

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In PNAS this week: genomic study of group B Streptococcus evolution, selection on the X chromosome in great apes, and more.

Changing the fat and fiber content of people's diets affects their gut microbiome, metabolome, and colon cancer risk, researchers say.

Broken links are found throughout academic publications, and some services are trying to combat such link decay.

Nick Stockton at Wired says that a pause in studying genome-editing tools should be used to find a path forward.