A novel locus for adolescent idiopathic scoliosis on chromosome 12p Academic Article uri icon


MeSH Major

  • Chromosomes, Human, Pair 12
  • Genetic Predisposition to Disease
  • Quantitative Trait Loci
  • Scoliosis


  • Adolescent idiopathic scoliosis (AIS) is a common disorder with strong evidence for genetic predisposition. Quantitative trait loci (QTLs) for AIS susceptibility have been identified on chromosomes. We performed a genome-wide genetic linkage scan in seven multiplex families using 400 marker loci with a mean spacing of 8.6 cM. We used Genehunter Plus to generate linkage statistics, expressed as homogeneity (HLOD) scores, under dominant and recessive genetic models. We found a significant linkage signal on chromosome 12p, whose support interval extends from near 12 pter, spanning approximately 10 million bases or 31 cM. Fine mapping within the region using 20 additional markers reveals maximum HLOD = 3.7 at 5 cM under a dominant inheritance model, and a split peak maximum HLOD = 3.2 at 8 and 18 cM under a recessive inheritance model. The linkage support interval contains 95 known genes. We found evidence suggestive of linkage on chromosomes 1, 6, 7, 8, and 14. This study is the first to find evidence of an AIS susceptibility locus on chromosome 12. Detection of AIS susceptibility QTLs on multiple chromosomes in this and other studies demonstrate that the condition is genetically heterogeneous.

publication date

  • October 2009



  • Academic Article



  • eng

PubMed Central ID

  • PMC4120267

Digital Object Identifier (DOI)

  • 10.1002/jor.20885

PubMed ID

  • 19340878

Additional Document Info

start page

  • 1366

end page

  • 72


  • 27


  • 10