1 Microbiology Graduate Group, University of California Davis, Davis, California, USA.
2 J. Craig Venter Institute, La Jolla, California, USA.
3 J. Craig Venter Institute, Rockville, Maryland, USA.
4 Institute of Marine and Environmental Technology, and Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA.
5 Department of Molecular Biology, University of Wyoming, Laramie, Wyoming, USA.
6 Department of Evolution and Ecology, UC Davis Genome Center, Department of Medical Microbiology and Immunology, University of California Davis, Davis, California, USA [email protected].