Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. sfeng@lanl.gov.|Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. chienchi@lanl.gov.|Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. po-e@lanl.gov.|Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. pchain@lanl.gov.