Type I Polyketide Synthases May Have Evolved Through Horizontal Gene Transfer Ginolhac, Aurélien ; Jarrin, Cyrille ; Robe, Patrick ; Perrière, Guy ; Vogel, Timothy M. ; Simonet, Pascal ; Nalin, Renaud Abstract Publication: Journal of Molecular Evolution Pub Date: June 2005 DOI: 10.1007/s00239-004-0161-1 Bibcode: 2005JMolE..60..716G