Representative YAC contig map. (A) The proximal (7pter-most) portion of contig C (sWSS173) is depicted, as deduced by SEGMAP. (B) The same portion of contig C (sWSS173) depicted inA is shown, as displayed in the Entrez Genomes Division (Table2). A detailed explanation of the various features of these maps is available in the electronic supplement associated with this paper (Table 2). Note that in each case, the contig map is displayed in its uncomputed form, where the STSs are simply spaced in an equidistant fashion from one another.