Genome-wide identification and characterization of replication origins by deep sequencing Jia Xu, Yoshimi Yanagisawa, Alexander M Tsankov, Christopher Hart, Keita Aoki, Naveen Kommajosyula, Kathleen E Steinmann, James Bochicchio, Carsten Russ, Aviv Regev, Oliver J Rando, Chad Nusbaum, Hironori Niki, Patrice Milos, Zhiping Weng and Nicholas Rhind Genome Biology 2012, 13:R27