Divergence involving global regulatory gene mutations in an Escherichia coli population evolving under phosphate limitation - Wang, Lei; Spira, Beny; Zhou, Zhemin; Feng, Lu; Maharjan, Ram P.; Li, Xiaomin; Li, Fangfang; Mckenzie, Christopher; Reeves, Peter R.; Ferenci, Thomas (Genome Biology and Evolution, 2010)