Fig. 1

Map of chromosome 3p25 near OXTR gene, markers genotyped, and linkage disequilibrium (LD). The 19.2 kb OXTR gene includes four exons, the last of which lies just 3.5 kb from exon 3 of the neighboring CAV3 gene. LD block 5 includes markers from exon 4 of OXTR, the intergenic region, and intron 2 of CAV3. LD is displayed in D′. LD blocks are defined by the solid spline method