Gr. Verheyen et al., Genetic refinement and physical mapping of a chromosome 18q candidate region for bipolar disorder, EUR J HUM G, 7(4), 1999, pp. 427-434
Recent genetic studies have implicated chromosome 18 in bipolar disorder (B
P) with putative loci in the pericentromeric region and on 18q. We reported
linkage to chromosome 18q21.33-q23 in a large family. In this study we typ
ed additional markers in the family and were able to reduce the candidate r
egion significantly. All affected family members are sharing alleles for ma
rkers spanning a genetic distance of maximal 8.9cM. Haplotype analysis prov
ided a marker order in agreement with published genetic and physical maps.
Using yeast artificial chromosomes, we constructed a contig map that will h
elp to identify positional candidate genes for bipolar disorder.