RGD Reference Report - Interaction between blood pressure quantitative trait loci in rats in which trait variation at chromosome 1 is conditional upon a specific allele at chromosome 10. - Rat Genome Database
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Interaction between blood pressure quantitative trait loci in rats in which trait variation at chromosome 1 is conditional upon a specific allele at chromosome 10.

Authors: Monti, J  Plehm, R  Schulz, H  Ganten, D  Kreutz, R  Hubner, N 
Citation: Monti J, etal., Hum Mol Genet 2003 Feb 15;12(4):435-9.
RGD ID: 629620
Pubmed: (View Article at PubMed) PMID:12566390

We have used inbred and congenic rat strains in F(2) segregation studies to discover epistasis in a polygenic model of hypertension. Previously, we have found evidence that the presence of a blood pressure quantitative trait locus (QTL) on chromosome 1 is conditional upon the allele status of chromosome 10. To prove the existence of an epistatic interaction we have analyzed congenic strains for chromosome 1 and 10 carrying high blood pressure QTL alleles from the spontaneously hypertensive rat on a normotensive background of the Wistar-Kyoto (WKY) rat. Additionally, a double congenic strain was developed with both chromosome 1 and 10 high blood pressure QTL alleles on the WKY background. Analysis of variance for blood pressure phenotypes as determined by radiotelemetry showed a significant effect for chromosome 10 but not chromosome 1 QTL alleles and demonstrated a significant interaction between the two loci (P<0.05). The interaction accounted for 5 mmHg of blood pressure. Thus, the identification of epistasis is critical to the understanding of the quantitative nature of blood pressure genetics.

Annotation

Disease Annotations    
hypertension  (IDA)

Phenotype Values via PhenoMiner

View PhenoMiner data from this reference here 

Objects Annotated

QTLs
Bp106  (Blood pressure QTL 106)
Bp107  (Blood pressure QTL 107)

Objects referenced in this article
0 WKY.SHRSP-(Shbg-Atp1b2)/Bbb null All species

Additional Information