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Cultured isolates of the unicellular planktonic cyanobacteria Prochlorococcus and marine Synechococcus belong to a single marine picophytoplankton clade. Within this clade, two deeply branching(More)
A fosmid library with inserts containing approximately 40 kb of marine bacterial DNA (J. L. Stein, T. L. Marsh, K. Y. Wu, H. Shizuya, and E. F. DeLong, J. Bacteriol. 178:591-599, 1996) yielded four(More)