In the early, online edition of Genome Research, the National Human Genome Research Institute's Elaine Ostrander and colleagues from the US and Ireland describe variants falling in and around half a dozen genes that seem to explain a good deal of the diminished size seen in some dog breeds. The group did fine mapping on four loci linked to canine body size in past work.

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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.