FIG. 1.

A simplified version of the combined physical and genetic map of the S. coelicolor chromosome, showing the locations of developmental genes and the seven ordered cosmids that span the adeA to cysB interval in the 8 o'clock region. The location of bldC is shown on the overlap between cosmids D17 and D25, as determined by complementation. The locations of other developmental genes on the cosmid contig are shown on the inside of the circle. The cosmids and their overlaps are arbitrarily shown to be of equal length. The sizes of the AseI fragments are given in kilobases. •, T3 end; ▪, T7 end; ♦, oriC.