Figure 1: Landscape of chromosome 4.
From: The zebrafish reference genome sequence and its relationship to the human genome
a, Exon coverage (blue), stacked with coverage by snRNA exons (black). b, Stacked repeat coverage, divided into type I transposable elements (red), type II transposable elements (grey) and other repeat types (blue), including dust, tandem and satellite repeats. c, Sequence composition (grey bars, clones; blue bars, WGS contigs). d, Genetic marker placements (red, SATmap markers; blue, heat shock meiotic map markers; black, Massachusetts General Hospital meiotic map markers). Marker placements have been normalized so that the maps can be compared. Near-centromeric clones are positioned at 20 Mb (BX537156), 20.2 Mb (Z10280) and 24.4 Mb (Z20450)28. The x axis shows the chromosomal position in Mb. a and b were calculated as percentage coverage over 1-Mb overlapping windows (y axis), with a 100-kb shift between each window. c and d were calculated over 100-kb windows. The y axis for d shows the normalization of marker positions relative to the span of the individual map. Similar graphs for the other chromosome are provided in the Supplementary Information.
