DESCRIPTION:

Linkage analysis was performed on a series of Recombinant QTL Introgression (RQI) strains (derived from C57BL/6ByJ and BALB/cJ) to identify QTLs associated with alcohol preference. Male animals from each of 13 RQI strains were tested for 12% alcohol preference and genotyped at 244 polymorphic loci with an average spacing of 6.6 cM. Progenitor strain C57BL/6ByJ exhibits higher alcohol preference than progenitor strain BALB/cJ. Significant linkage to 12% alcohol preference (P<0.0002) mapped to a region of mouse Chromosome 15 spanning markers D15Mit159 (49.6 cM), D15Mit34 (52.2 cM), and D15Mit242 (55.6 cM). The experiment was done in duplicate and the same 3 chromosome 15 markers were detected each time. This locus is named Alprf (alcohol preference.) BALB/cJ-derived alleles confer increased alcohol preference at this locus. Potential candidate genes mapping near Alprf include Ecgf1 (51.6 cM), Cntn1 (55.1 cM), Kif21a (55.1 cM), Pou6f1 (56.6 cM), and Aqp5 (56.8 cM).

LABEL:

QTL-Alprf-Mouse-Chr 15

SCORE TYPE:

Binary

DATE ADDED:

2011-04-11

DATE UPDATED:

2020-05-06

SPECIES:

AUTHORS:

Vadasz C, Saito M, Balla A, Kiraly I, Vadasz C 2nd, Gyetvai B, Mikics E, Pierson D, Brown D, Nelson JC

TITLE:

Mapping of quantitative trait loci for ethanol preference in quasi-congenic strains.

JOURNAL:

Alcohol (Fayetteville, N.Y.) Feb 2000, Vol 20, pp. 161-71

ABSTRACT:

Ethanol preference, a component of alcoholism, has been known for four decades to differ greatly between C57BL/6 and BALB/c inbred mouse strains. For mapping quantitative trait loci (QTLs) that affect ethanol preference, we used a set of B6.C Recombinant QTL Introgression (RQI) strains, which carry about 5% of the donor BALB/cJ (C) genome on a C57BL/6ByJ (B6) background. After characterizing males of the progenitor and RQI strains for variations in ethanol preference, we scanned their genome for polymorphisms at 244 dinucleotide-repeat marker loci known to differ between B6 and C. Because of the introgression of BALB/c-type QTLs onto the B6 background, some strains showed ethanol preference significantly lower or higher than that of the background strain, suggesting that genetic interaction between ethanol preference QTLs and the background can be operative. The genomic region showing the strongest influence on ethanol preference was on mouse chromosome 15, and corresponds to human chr.12q11-q13. PUBMED: 10719795
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