Nature Reviews Genetics 10, 495–505 (2009)

On page 499 of the above article, an error was introduced into the section entitled “Reprogramming the IM permeome.” The sentence in the published version that reads “These data show a major transition in organellogenesis that occurred when the hosts replaced all previous IM solute transporters of the endosymbionts with eukaryote-derived nuclearencoded solute carriers” should refer to the replacement of “most previous IM solute transporters”. The editors apologize for the error.