This Week in Nature

In a paper published online in advance in Nature this week, the Cold Spring Harbor Laboratory's Michael Wigler et al. report their use of whole-genome amplification and next-gen sequencing on flow-sorted nuclei isolated from polygenomic tumor cells to determine that, "in contrast to gradual models of tumor progression, our data indicate that tumors grow by punctuated clonal expansions with few persistent intermediates."

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.