Department of Biology, University of Copenhagen, Copenhagen, Denmark, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand, Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.|Institute of Veterinary, Animal & Biomedical Sciences, Massey University, Palmerston North, New Zealand, Allan Wilson Centre for Molecular Ecology & Evolution, Massey University, Palmerston North, New Zealand.|Pathogen Genetics, Wellcome Trust Sanger Institute, Hinxton, United Kingdom.|Pathogen Genetics, Wellcome Trust Sanger Institute, Hinxton, United Kingdom, Institute for Molecular Infection Biology, University of Wuerzburg, Wuerzburg, Germany.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand, Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand, Allan Wilson Centre for Molecular Ecology & Evolution, Massey University, Palmerston North, New Zealand.|School of Biological Sciences, University of Canterbury, Christchurch, New Zealand, Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand.