Study resolves long-running controversy over critical step in gene silencing

Credit: CC0 Public Domain A long-running debate over how an important gene-silencing protein identifies its targets has been resolved by researchers at Massachusetts General Hospital (MGH). Their findings, reported in Nature Structural and Molecular Biology, also explain certain mysteries about the behavior of this protein, known as Polycomb repressive complex 2 (PRC2). PRC2 helps regulate […]

Study resolves the position of fleas on the tree of life

A study of more than 1,400 protein-coding genes of fleas has resolved one of the longest standing mysteries in the evolution of insects, reordering their placement in the tree of life and pinpointing who their closest relatives are. The University of Bristol study, published in the journal Palaeoentomology, drew on the largest insect molecular dataset […]