We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAn Overview of the Introns-First Theory.AuthorsPenny, David; Hoeppner, Marc P.; Poole, Anthony M.PublicationJournal of Molecular Evolution, 2009, Vol 69, Issue 5, p527ISSN0022-2844Publication typearticleDOI10.1007/s00239-009-9279-5