This Week in Nature

In early online publication, scientists found that in Arabidopsis thaliana, regions of DNA methylation are deficient in histone variant H2A.Z. Mutation of the MET1 DNA methyltransferase, which causes both losses and gains of DNA methylation, leads to opposite changes in H2A.Z deposition, whereas mutation of the PIE1 subunit of the Swr1 complex that deposits H2A.Z leads to genome-wide hypermethylation.

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National Geographic reports that marine mammals have lost a gene that could make them more susceptible to organophosphate damage.

NPR reports on Human Cell Atlas Consortium's effort to catalog all the different cell types within the human body.

The Union of Concerned Scientists surveyed US government scientists about Trump Administration policies and more, Science reports.

In PNAS this week: history and genetic diversity of the scarlet macaw, approach for predicting human flu virus evolution, and more.