Global positions of the anchored YAC contigs. All but one of the anchored YAC contigs listed in Table 1 are depicted as vertical bars. For contigs B–R, T, and U, the vertical positioning of each contig reflects its approximate position relative to the chromosome 7 Genethon genetic map [left; each horizontal cross-bar corresponds to a cumulative cM position (see Fig. 2)]. The bar for each contig is drawn so as to span the interval between the most proximal and most distal Genethon genetic markers in that contig. In some instances, contigs contain genetic markers residing at the same cumulative cM position (e.g., K, L, and M); in these cases, the contigs are roughly positioned in place with minimal intervening space. Genethon genetic markers with discrepant positions on the genetic and physical maps were not considered (see Fig. 2). The positions of contigs A and V at the ends of the chromosome reflect the presence of YACs containing the 7p (7p TEL) and 7q (7q TEL) telomere, respectively. Darkened bars denote contigs with known orientation, whereas open bars denote contigs where the orientation is not known (see Table 1). Contig S is not represented, as it is anchored on the RH map but not the Genethon genetic map. Note that the approximate position of the centromere (CEN) is indicated.