This Week in PNAS

An international team led by investigators in France outlines efforts to sequence and characterize the genome of the red algal species Chondrus crispus, commonly called Irish moss — a member of a lineage descended from the first photosynthetic eukaryotes formed through endosymbiosis. After using Sanger sequencing to tackle a C. crispus sample grown from material collected in Peggy's Cove, Nova Scotia, in the 1980s, the researchers delved into the 105 million-base-pair genome sequence, identifying 9,600 or so predicted protein-coding genes.

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American scientists find themselves once again warning the Trump administration not to dismiss science, the New Yorker report.

A new study suggests CRISPR could be used to save coral reefs from dying off, Forbes reports.

Researchers have found that the i-motif shape of DNA previously observed in the lab also exists in human cells, and that it may serve a purpose.

In PNAS this week: a genomic, transcriptomic, and metabolomic analysis of the tea plant, Arabidopsis thaliana's adaptations to specific local environments, and more.