Fine mapping of autistic disorder to chromosome 15q11-q13 by use of phenotypic subtypes

Yujun Shao, Michael Cuccaro, E. R. Hauser, K. L. Raiford, M. M. Menold, C. M. Wolpert, S. A. Ravan, L. Elston, K. Decena, S. L. Donnelly, R. K. Abramson, H. H. Wright, G. R. DeLong, John Gilbert, Margaret A Pericak-Vance

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Abstract

Autistic disorder (AutD) is a complex genetic disease. Available evidence suggests that several genes contribute to the underlying genetic risk for the development of AutD. However, both etiologic heterogeneity and genetic heterogeneity confound the discovery of AutD-susceptibility genes. Chromosome 15q11-q13 has been identified as a strong candidate region on the basis of both the frequent occurrence of chromosomal abnormalities in that region and numerous suggestive linkage and association findings. Ordered-subset analysis (OSA) is a novel statistical method to identify a homogeneous subset of families that contribute to overall linkage at a given chromosomal location and thus to potentially help in the fine mapping and localization of the susceptibility gene within a chromosomal area. For the present analysis, a factor that represents insistence on sameness (IS) - derived from a principal-component factor analysis using data on 221 patients with AutD from the repetitive behaviors/stereotyped patterns domain in the Autism Diagnostic Interview-Revised - was used as a covariate in OSA. Analysis of families sharing high scores on the IS factor increased linkage evidence for the 15q11-q13 region, at the GABRB3 locus, from a LOD score of 1.45 to a LOD score of 4.71. These results narrow our region of interest on chromosome 15 to an area surrounding the γ-aminobutyric acid-receptor subunit genes, in AutD, and support the hypothesis that the analysis of phenotypic homogeneous subtypes may be a powerful tool for the mapping of disease-susceptibility genes in complex traits.

Original languageEnglish
Pages (from-to)539-548
Number of pages10
JournalAmerican Journal of Human Genetics
Volume72
Issue number3
DOIs
StatePublished - Mar 1 2003
Externally publishedYes

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Autistic Disorder
Chromosomes
Genes
Stereotyped Behavior
Aminobutyrates
Chromosomes, Human, Pair 15
Inborn Genetic Diseases
Genetic Heterogeneity
Disease Susceptibility
Principal Component Analysis
Chromosome Aberrations
Statistical Factor Analysis
Interviews

ASJC Scopus subject areas

  • Genetics

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Fine mapping of autistic disorder to chromosome 15q11-q13 by use of phenotypic subtypes. / Shao, Yujun; Cuccaro, Michael; Hauser, E. R.; Raiford, K. L.; Menold, M. M.; Wolpert, C. M.; Ravan, S. A.; Elston, L.; Decena, K.; Donnelly, S. L.; Abramson, R. K.; Wright, H. H.; DeLong, G. R.; Gilbert, John; Pericak-Vance, Margaret A.

In: American Journal of Human Genetics, Vol. 72, No. 3, 01.03.2003, p. 539-548.

Research output: Contribution to journalArticle

Shao, Y, Cuccaro, M, Hauser, ER, Raiford, KL, Menold, MM, Wolpert, CM, Ravan, SA, Elston, L, Decena, K, Donnelly, SL, Abramson, RK, Wright, HH, DeLong, GR, Gilbert, J & Pericak-Vance, MA 2003, 'Fine mapping of autistic disorder to chromosome 15q11-q13 by use of phenotypic subtypes', American Journal of Human Genetics, vol. 72, no. 3, pp. 539-548. https://doi.org/10.1086/367846
Shao, Yujun ; Cuccaro, Michael ; Hauser, E. R. ; Raiford, K. L. ; Menold, M. M. ; Wolpert, C. M. ; Ravan, S. A. ; Elston, L. ; Decena, K. ; Donnelly, S. L. ; Abramson, R. K. ; Wright, H. H. ; DeLong, G. R. ; Gilbert, John ; Pericak-Vance, Margaret A. / Fine mapping of autistic disorder to chromosome 15q11-q13 by use of phenotypic subtypes. In: American Journal of Human Genetics. 2003 ; Vol. 72, No. 3. pp. 539-548.
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