In his article Uprooting the Tree of Life, W. Ford Doolittle discusses the Last Universal Common Ancestor – the root of the Tree of Life – and the problems with that concept posed by HGT.
gene | Gene Autry | Gene Hackman | evolution | Gene Roddenberry | Gene Simmons | Gene Kelly | File Transfer Protocol | Gene Pitney | The Manhattan Transfer | Gene Krupa | Mitsubishi Lancer Evolution | Asynchronous Transfer Mode | Underworld: Evolution | Gene Watson | Evolution | Hypertext Transfer Protocol | Gene Wilder | Gene Tunney | gene expression | Gene Eugene | Manhattan Transfer | Gene Tierney | Gene Robinson | Gene Raymond | Gene expression | Gene Deitch | Gene Clark | Gene | tumor suppressor gene |