1. Department of Plant Biology, University of California, Davis, California
2. Section of Cell and Developmental Biology, University of California, La Jolla, California
3. Department of Chemistry, San Diego State University, San Diego, California
4. College of Agronomy and Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China
5. Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
6. Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, La Jolla, California