Figure 1

Importance of candidate genes Importance measured by percent increase in PE. Variables are the mean IBD at genes b12 to b38 and s3 to s12 and at four random locations (r) on each of chromosomes 2, 6, 10, and 16 (total of 52 loci, b37 and s12 being merged into one). Random forests are 5000 trees. A sample of 30 variables is considered at each split.