1 Centre for Novel Agricultural Products, Department of Biology, University of York, York, YO10 5DD, UK.
2 Bioscience Technology Facility, Department of Biology, University of York, York, YO10 5DD, UK.
3 The Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK.
4 Department of Plant Biotechnology and Bioinformatics, Ghent University, and VIB Centre for Plant Systems Biology, 9052, Ghent, Belgium.
5 Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, 0028, South Africa.
6 College of Horticulture, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing, China.
7 Centre for Novel Agricultural Products, Department of Biology, University of York, York, YO10 5DD, UK. ian.graham@york.ac.uk.