RGD Reference Report - Genetic loci controlling breast cancer susceptibility in the Wistar-Kyoto rat. - Rat Genome Database

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Genetic loci controlling breast cancer susceptibility in the Wistar-Kyoto rat.

Authors: Lan, H  Kendziorski, CM  Haag, JD  Shepel, LA  Newton, MA  Gould, MN 
Citation: Lan H, etal., Genetics 2001 Jan;157(1):331-9.
RGD ID: 62417
Web Url: http://www.genetics.org/cgi/content/full/157/1/331
Pubmed: PMID:11139513   (View Abstract at PubMed)
PMCID: PMC1461476   (View Article at PubMed Central)

In this study, the Wistar-Kyoto (WKy) rat was genetically characterized for loci that modify susceptibility to mammary carcinogenesis. We used a genetic backcross between resistant WKy and susceptible Wistar-Furth (WF) rats as a panel for linkage mapping to genetically identify mammary carcinoma susceptibility (Mcs) loci underlying the resistance of the WKy rat. Rats were phenotyped for DMBA-induced mammary carcinomas and genotyped using microsatellite markers. To detect quantitative trait loci (QTL), we analyzed the genome scan data under both parametric and nonparametric distributional assumptions and used permutation tests to calculate significance thresholds. A generalized linear model analysis was also performed to test for interactions between significant QTL. This methodology was extended to identify interactions between the significant QTL and other genome locations. Chromosomes 5, 7, 10, and 14 were found to contain significant QTL, termed Mcs5, Mcs6, Mcs7, and Mcs8, respectively. The WKy alleles of Mcs5, -6, and -8 are associated with mammary carcinoma resistance; the WKy allele of Mcs7 is associated with an increased incidence of mammary cancer. In addition, we identified an interaction between Mcs8 and a region on chromosome 6 termed Mcsm1 (modifier of Mcs), which had no significant main effect on mammary cancer susceptibility in this genetic analysis.



Disease Annotations    

Phenotype Annotations    

Mammalian Phenotype

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Strains with Phenominer Data Strains with phenominer data
WF/NHsd WKY/NHsd

Objects Annotated

QTLs
Mcs5  (Mammary carcinoma susceptibility QTL 5)
Mcs6  (Mammary carcinoma susceptibility QTL 6)
Mcs7  (Mammary carcinoma susceptibility QTL 7)
Mcs8  (Mammary carcinoma susceptibility QTL 8)
Mcsm1  (Mammary carcinoma susceptibility modifier QTL 1)

Strains
WF/NHsd  (NA)
WKY/NHsd  (NA)

Objects referenced in this article
Gene Brca1 BRCA1, DNA repair associated Rattus norvegicus

Additional Information