Department of Energy, Joint Genome Institute, Walnut Creek, CA 94598, USA and Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Department of Energy, Joint Genome Institute, Walnut Creek, CA 94598, USA and Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Department of Energy, Joint Genome Institute, Walnut Creek, CA 94598, USA and Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.|Department of Energy, Joint Genome Institute, Walnut Creek, CA 94598, USA and Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.