"The University of East Anglia has concluded a thorough investigation into concerns raised in January 2015 about possible research misconduct in Professor Olivier Voinnet’s PhD thesis awarded in 2001. This investigation was conducted with the full cooperation of Professor Voinnet and concluded that the matter relates to a minor breach of University Regulations on conduct in research for two figure panels and to some figure mounting errors for the remaining parts of the thesis. The investigation found no evidence of dishonesty and confirmed that the thesis’ conclusions remain unaffected. The outcome of the investigation was that an addendum to the thesis would be supplied by the author, and be reviewed and approved by appropriate internal and external examiners. This addendum was reviewed in this way and approved by the University in 2017, and was added to the public access copies of the thesis held by the University Library and British Library."