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This Week in Science

In this week's Science, a team led by Harvard University researchers reports on a study in zebrafish that provided new insights into how melanoma is triggered. The investigators focused on crestin, a gene that is expressed in embryonic neural crest cells, but not adult tissues — except when melanoma develops.

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Australia will not be regulating gene editing of plants, animals, and human cell lines as long as no new genetic material is incorporated, reports Nature News.

The Washington Post reports that the US Department of Agriculture told its researchers to label peer-reviewed articles as "preliminary" work.

Researchers have sequenced the genomes of both the coast redwood and the giant sequoia, according to the San Francisco Chronicle.

In PNAS this week: study of epigenetic patterns in mammalian eggs, clonal expansion patterns in CD8+ T cells, and more.