Figure 3.

Fine-scale maps of chromosomal INDEL and SNP variation. INDEL and SNP variation graphs are shown for 200 kb bins across chromosomes 1, 3, and 18. The number of traces mapping to each bin and the number of trace bases in each bin also are charted. Chromosome 1 has several large variation hotspots in which the INDEL and/or SNP variation levels are elevated. Chromosome 3 has one large variation hotspot along with smaller hotspots. Chromosome 18 lacks large hotspots. The color key is indicated in the top panel. Similar graphs were generated for all human chromosomes and are found in Supplemental Tables chr1–chrY.