title: Bardet-Biedl syndrome is linked to DNA markers on chromosome 11q and is genetically heterogeneous.
abstract: Bardet-Biedl syndrome (BBS) is an uncommon autosomal recessive condition characterized by mental retardation, post-axial polydactylia, obesity and pigmentary retinopathy. We performed linkage analysis in 31 multiplex BBS families and report significant linkage with two markers on chromosome 11q, PYGM and AFM164zf12 (D11S913). Homogeneity testing demonstrates genetic heterogeneity within our set of families. Our data imply that a major gene, BBS1, is located on chromosome 11q, although mutations at other loci may also be associated with this phenotype.
authors.affiliation: Howard Hughes Medical Institute, University of Utah, Salt Lake City 84112.
authors.forename: M
authors.initials: M
authors.lastname: Leppert
authors.forename: L
authors.initials: L
authors.lastname: Baird
authors.forename: K L
authors.initials: KL
authors.lastname: Anderson
authors.forename: B
authors.initials: B
authors.lastname: Otterud
authors.forename: J R
authors.initials: JR
authors.lastname: Lupski
authors.forename: R A
authors.initials: RA
authors.lastname: Lewis
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D001483:Base Sequence; D002874:Chromosome Mapping; D002880:Chromosomes, Human, Pair 11; D005260:Female; D005819:Genetic Markers; D006801:Humans; D007006:Hypogonadism / Q000235:genetics; D008607:Intellectual Disability / Q000235:genetics*; D008126:Lod Score; D008297:Male; D008969:Molecular Sequence Data; D009765:Obesity / Q000235:genetics; D010375:Pedigree; D017689:Polydactyly / Q000235:genetics; D012164:Retinal Diseases / Q000235:genetics; D013577:Syndrome
chemical_list: D005819:Genetic Markers