1. California Institute for Quantitative Biosciences University of California Berkeley CA 94720 USA
2. Institute of Quantitative and Computational Biosciences University of California Los Angeles CA 90095 USA
3. Department of Microbiology, Immunology, and Molecular Genetics University of California Los Angeles 520 Boyer Hall Los Angeles CA 90095 USA
4. DOE Joint Genome Institute Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
5. Department of Molecular, Cell and Developmental Biology Medicine University of California Los Angeles CA 90095 USA
6. Department of Plant and Microbial Biology University of California Berkeley CA 94720 USA
7. Department of Molecular & Cell Biology University of California Berkeley CA 94720 USA
8. Division of Environmental Genomics and Systems Biology Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
9. Donald Danforth Plant Science Center St. Louis MO 63132 USA