Figure 1. .

Mapping of a candidate BBS region to 4q27. A, Analysis of homozygosity in chromosome 4 in three consanguineous families. The areas of homozygosity with >25 SNPs are black, whereas homozygosity regions defined by 15–25 consecutive SNPs are gray. B, Detailed SNP homozygosity mapping and microsatellite segregation in the region of interest on chromosome 4 in the two Gypsy families. Light- and dark-gray regions represent homozygous SNPs (AA and BB, respectively), whereas white regions indicate heterozygous alleles (AB).