title: Ancient horizontal gene transfer.
authors.affiliation: Bioinformatics Division, GlaxoSmithKline, 1250 South Collegeville Road, UP1345 Collegeville, Pennsylvania 19426, USA. james.r.brown@gsk.com
authors.forename: James R
authors.initials: JR
authors.lastname: Brown
mesh_terms: D019143:Evolution, Molecular; D022761:Gene Transfer, Horizontal; D010802:Phylogeny