1. Department of Computer Science, School of Computer Science, Florida State University, Tallahassee, FL, USA
2. US Department of Energy, Joint Genome Institute, Walnut Creek, CA, USA
3. Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
4. Pacific Biosciences Inc, Menlo Park, CA, USA
5. School of Natural Sciences, University of California at Merced, Merced, CA, USA