
Measurement of three euchromatic clone gaps by whole-genome optical restriction mapping. Alignments of the Release 6 genomic sequence (Rel6) to whole-genome optical restriction map contigs (Contig) at clone gaps between sequence scaffolds (arrows) are diagrammed. Aligned NheI restriction fragments (shaded boxes), unaligned fragments (white boxes), and alignment points (lines connecting NheI restriction sites in the sequence and the map) are indicated. The euchromatic clone gaps at (A) 2R: 57B, (B) 3L: 64C, and (C) 4: 102F are spanned by whole-genome map contigs, providing estimates of the gap sizes (Supplemental Table S3).











