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Brenndörfer, J.* ; Altmann, A.* ; Widner-Andrä, R.* ; Pütz, B.* ; Czamara, D.* ; Tilch, E. ; Kam-Thong, T.* ; Weber, P.* ; Rex-Haffner, M.* ; Bettecken, T.* ; Bültmann, A.* ; Müller-Myhsok, B.* ; Binder, E.E.* ; Landgraf, R.* ; Czibere, L.*

Connecting anxiety and genomic copy number variation: A genome-wide analysis in CD-1 mice.

PLoS ONE 10:e0128465 (2015)
Publ. Version/Full Text DOI PMC
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Genomic copy number variants (CNVs) have been implicated in multiple psychiatric disorders, but not much is known about their influence on anxiety disorders specifically. Using next-generation sequencing (NGS) and two additional array-based genotyping approaches, we detected CNVs in a mouse model consisting of two inbred mouse lines showing high (HAB) and low (LAB) anxiety-related behavior, respectively. An influence of CNVs on gene expression in the central (CeA) and basolateral (BLA) amygdala, paraventricular nucleus (PVN), and cingulate cortex (Cg) was shown by a two-proportion Z-test (p = 1.6 x 10-31), with a positive correlation in the CeA (p = 0.0062), PVN (p = 0.0046) and Cg (p = 0.0114), indicating a contribution of CNVs to the genetic predisposition to trait anxiety in the specific context of HAB/LAB mice. In order to confirm anxiety-relevant CNVs and corresponding genes in a second mouse model, we further examined CD-1 outbred mice. We revealed the distribution of CNVs by genotyping 64 CD 1 individuals using a high-density genotyping array (Jackson Laboratory). 78 genes within those CNVs were identified to show nominally significant association (48 genes), or a statistical trend in their association (30 genes) with the time animals spent on the open arms of the elevated plus-maze (EPM). Fifteen of them were considered promising candidate genes of anxiety-related behavior as we could show a significant overlap (permutation test, p = 0.0051) with genes within HAB/LAB CNVs. Thus, here we provide what is to our knowledge the first extensive catalogue of CNVs in CD-1 mice and potential corresponding candidate genes linked to anxiety-related behavior in mice.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Real-time Pcr; Gene-expression; Glyoxalase-i; Structural Variation; Bipolar Disorder; Candidate Genes; Microarray Data; Trait Anxiety; Animal-model; De-novo
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 1932-6203
Journal PLoS ONE
Quellenangaben Volume: 10, Issue: 5, Pages: , Article Number: e0128465 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place Lawrence, Kan.
Reviewing status Peer reviewed
Institute(s) Institute of Human Genetics (IHG)
POF-Topic(s) 30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
Research field(s) Genetics and Epidemiology
PSP Element(s) G-500700-001
PubMed ID 26011321
DOI 10.1371/journal.pone.0128465
WOS ID WOS:000355183900238
Scopus ID 84930226864
Erfassungsdatum 2015-05-28
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