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Title: Runs of Homozygosity Implicate Autozygosity as a Schizophrenia Risk Factor
Contributor(s): Keller, Matthew C (author); Simonson, Matthew A (author); Ripke, Stephan (author); Neale, Ben M (author); Gejman, Pablo V (author); Howrigan, Daniel P (author); Lee, Sang Hong  (author); Lencz, Todd (author); Levinson, Douglas F (author); Sullivan, Patrick F (author)
Corporate Author: Psychiatric Genomics Consortium, Schizophrenia Working Group (PGC SCZ)
Publication Date: 2012
Open Access: Yes
DOI: 10.1371/journal.pgen.1002656Open Access Link
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Abstract: Autozygosity occurs when two chromosomal segments that are identical from a common ancestor are inherited from each parent. This occurs at high rates in the offspring of mates who are closely related (inbreeding), but also occurs at lower levels among the offspring of distantly related mates. Here, we use runs of homozygosity in genome-wide SNP data to estimate the proportion of the autosome that exists in autozygous tracts in 9,388 cases with schizophrenia and 12,456 controls. We estimate that the odds of schizophrenia increase by ∼17% for every 1% increase in genome-wide autozygosity. This association is not due to one or a few regions, but results from many autozygous segments spread throughout the genome, and is consistent with a role for multiple recessive or partially recessive alleles in the etiology of schizophrenia. Such a bias towards recessivity suggests that alleles that increase the risk of schizophrenia have been selected against over evolutionary time.
Publication Type: Journal Article
Source of Publication: PLoS Genetics, 8(4), p. 1-11
Publisher: Public Library of Science
Place of Publication: United States of America
ISSN: 1553-7404
Fields of Research (FoR) 2008: 060405 Gene Expression (incl. Microarray and other genome-wide approaches)
Fields of Research (FoR) 2020: 310505 Gene expression (incl. microarray and other genome-wide approaches)
Socio-Economic Objective (SEO) 2008: 920110 Inherited Diseases (incl. Gene Therapy)
Socio-Economic Objective (SEO) 2020: 200101 Diagnosis of human diseases and conditions
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article

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