title: At the core of the Archaea.
authors.affiliation: Canadian Institute for Advanced Research, Dalhousie University, Halifax, NS Canada.
authors.forename: W F
authors.initials: WF
authors.lastname: Doolittle
mesh_terms: D001105:Archaea / Q000145:classification* / Q000235:genetics*; D005075:Biological Evolution; D005057:Eukaryotic Cells; D011387:Prokaryotic Cells