1. Center for Plant Science Innovation University of Nebraska Lincoln NE 68588 USA
2. Department of Agronomy and Horticulture University of Nebraska Lincoln NE 68583 USA
3. Germplasm Bank of Wild Species Kunming Institute of Botany Chinese Academy of Sciences Kunming Yunnan 650201 China
4. Grainger Bioinformatics Center, Science and Education Field Museum of Natural History Chicago IL 60605 USA
5. Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI 48109 USA
6. J. Craig Venter Institute La Jolla CA 92037 USA
7. Department of Horticulture Michigan State University East Lansing MI 48824 USA