Relationship between electrophoretically separated chromosomes and the contigs of the JEC21 and H99 maps. (A) Diagrammatic representation of the electrophoretically separated chromosomes from the serotype D strains B-3501 and NIH12 (Wickes et al. 1994; Spitzer and Spitzer 1997). The panel on the right shows the contigs of JEC21 that hybridized to the same markers used by Spitzer and Spitzer (1997)and Wickes et al. (1994) to identify specific chromosomes or groups of chromosomes. (B) Locations of chromosome-specific markers on mapped and unmapped clones and specific contigs of the serotype A strain H99. The number of bacterial artificial chromosome (BAC) clones that hybridized with each marker is also presented for both the mapped BAC clones and the additional clones (unmapped) that were present on the high-density filter.
