School of Informatics and Computing, Indiana University, Bloomington, Indiana.|School of Informatics and Computing, Indiana University, Bloomington, Indiana.|Department of Biology, Indiana University, Bloomington, Indiana.|School of Informatics and Computing, Indiana University, Bloomington, Indiana, Department of Biology, Indiana University, Bloomington, Indiana.|The Genome Institute at Washington University, Washington University School of Medicine, Saint Louis, Missouri.|School of Informatics and Computing, Indiana University, Bloomington, Indiana, Department of Biology, Indiana University, Bloomington, Indiana.