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Cell. 2012 Mar 16;148(6):1223-41. doi: 10.1016/j.cell.2012.02.039.

CNVs: harbingers of a rare variant revolution in psychiatric genetics.

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  • 1Beyster Center for Genomics of Psychiatric Diseases, University of California, San Diego, La Jolla, CA 1020103, USA.

Abstract

The genetic bases of neuropsychiatric disorders are beginning to yield to scientific inquiry. Genome-wide studies of copy number variation (CNV) have given rise to a new understanding of disease etiology, bringing rare variants to the forefront. A proportion of risk for schizophrenia, bipolar disorder, and autism can be explained by rare mutations. Such alleles arise by de novo mutation in the individual or in recent ancestry. Alleles can have specific effects on behavioral and neuroanatomical traits; however, expressivity is variable, particularly for neuropsychiatric phenotypes. Knowledge from CNV studies reflects the nature of rare alleles in general and will serve as a guide as we move forward into a new era of whole-genome sequencing.

Copyright © 2012 Elsevier Inc. All rights reserved.

PMID:
22424231
[PubMed - indexed for MEDLINE]
PMCID:
PMC3351385
Free PMC Article

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