R. R. Copley

The paper identifies key amino acid differences in Antennapedia-like homeobox genes to infer evolutionary relationships and duplication events in the cnidarian-bilaterian stem group.

The paper evaluates SAC activation in early embryos of diverse metazoan species, finding two classes of embryos with or without SAC proficiency, and suggests SAC activity is default in metazoans, silenced in chordates.

This study identifies Kif2 as a microtubule depolymerase required for unequal cell division, showing its localization to a cortical endoplasmic reticulum subdomain and its role in spindle asymmetry.