1. State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological Engineering, Institute of Biodiversity Sciences, Institute of Plant Biology, Center for Evolutionary Biology, School of Life Sciences, Fudan University Shanghai 200438 China
2. Department of Biology the Huck Institutes of the Life Sciences, the Pennsylvania State University, University Park Pennslyvania 16802 USA
3. Department of Integrative Biology The University of Texas, University Station C0930 Austin Texas 78712 USA
4. Institut für Bodiversität der Pflanzen, Universität Bonn Bonn D – 53115 Germany
5. Department of Silviculture and Nature Conservation University of Chile Santiago 9206 Chile
6. State Key Laboratory of Evolutionary and Systematic Botany, Institute of Botany, the Chinese Academy of Sciences Beijing 100093 China