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Alcohol Clin Exp Res. 2009 Mar;33(3):531-7. doi: 10.1111/j.1530-0277.2008.00866.x. Epub 2008 Dec 19.

Genomewide SNP screen to detect quantitative trait loci for alcohol preference in the high alcohol preferring and low alcohol preferring mice.

Author information

1
Department of Medicine, School of Medicine, Indiana University, Indianapolis, Indiana 46202, USA. pbice@iupui.edu

Abstract

BACKGROUND:

The high and low alcohol preferring (HAP1 and LAP1) mouse lines were selectively bred for differences in alcohol intake. The HAP1 and LAP1 mice are essentially noninbred lines that originated from the outbred colony of HS/Ibg mice, a heterogeneous stock developed from intercrossing 8 inbred strains of mice.

METHODS:

A total of 867 informative SNPs were genotyped in 989 HAP1 x LAP1 F2, 68 F1s, 14 parents (6 LAP1, 8 HAP1), as well as the 8 inbred strains of mice crossed to generate the HS/Ibg colony. Multipoint genome wide analyses were performed to simultaneously detect linked QTLs and also fine map these regions using the ancestral haplotypes.

RESULTS:

QTL analysis detected significant evidence of association on 4 chromosomes: 1, 3, 5, and 9. The region on chromosome 9 was previously found linked in a subset of these F2 animals using a whole genome microsatellite screen.

CONCLUSIONS:

We have detected strong evidence of association to multiple chromosomal regions in the mouse. Several of these regions include candidate genes previously associated with alcohol dependence in humans or other animal models.

PMID:
19120064
PMCID:
PMC2867232
DOI:
10.1111/j.1530-0277.2008.00866.x
[Indexed for MEDLINE]
Free PMC Article
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