Correction: Benchmarking tools for the alignment of functional noncoding DNA

Address: 1Biophysics Graduate Group, University of California, Berkeley, CA 94720, USA, 2 Department of Genome Science, Life Science Division, Lawrence Orlando Berkeley National Laboratory, Berkeley, CA 94720, USA, 3Berkeley Drosophila Genome Project, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, 4Technische Fakultät, Universität Bielefeld, 33594 Bielefeld, Germany, 5Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA and 6Current address: Department of Genetics, University of Cambridge, Cambridge, CB2 3EH, UK