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This Week in PNAS

In the Proceedings of the National Academy of Sciences this week, University of California, Berkeley's Sung-Hou Kima is senior author on work that used whole-genome phylogenies to study genic and nongenic regions in mammals. Scientists compared ten mammalian genomes using a method called "feature frequency profile" and found that the entire nongenic portion of mammalian genomes contains evolutionary information that is similar to the intron and exon regions, says the abstract.

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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.