Figure 1

Genome coverage of the Nsp CN array before and after probe filtering compared with 500 K EA arrays. The X-axis is the distance between any given point in the gap-adjusted genome and the next closest marker. The curve shows the proportion of the genome where the closest marker is less than a certain distance. For example, for the after probe filtering Nsp CN array markers, 99.0% of the genome is less than 10 kb away from a Nsp fragment marker (compared to 99.8% for the before probe filtering Nsp CN array markers) while for the 500 K EA selected SNPs, only 84.9% of the genome has a SNP within 10 kb.