1. DOE Joint Genome Institute, Walnut Creek, CA 94598, USA.
2. Genomics and
3. Department of Genetics, University of California Davis, Davis, CA 95616, USA.
4. Life Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
5. Engineering Divisions, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
6. Engineering Divisions, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
7. Physics Department, University of California Berkeley, Berkeley, CA 94720, USA.