1. Institut des Sciences du Végétal, Centre National de la Recherche Scientifique, 91198 Gif sur Yvette cedex, France
2. All-Russia Research Institute for Agricultural Microbiology, Laboratory of Genetics of Plant-Microbe Interactions, 196608 Pushkin, St Petersburg, Russia
3. Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EB, United Kingdom
4. Department of Crop Genetics, John Innes Centre, Norwich NR4 7UH, United Kingdom
5. Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, Oklahoma 73401
6. Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, Oklahoma 74078
7. Plant Molecular Sciences, School of Biological Sciences, University of Auckland, Private Bag 92019 Auckland, New Zealand