Figure 2.

Details of linkage results on chromosome 20 for Dpter (red), atopy (orange), BHR (light green), FEV₁ (dark green), asthma (light blue), and FEV₁/FVC (dark blue). The solid horizontal line shows the empirical genomewide threshold for significant linkage, and the dashed line shows the threshold for suggestive linkage (see main text). Multipoint entropy information content (Kruglyak et al. 1996) is also shown (dotted line). Highlighted at the top are the positions of ADAM33 (unblackened arrowhead), the centromere (blackened arrowhead), and the markers genotyped in the 20q terminal region. Note that the X-axis scale ends at 102 cM, although the last X-axis label is 100 cM for convenience.