RGD Reference Report - Genome scanning of the HXB/BXH sets of recombinant inbred strains of the rat for quantitative trait loci associated with conditioned taste aversion. - Rat Genome Database

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Genome scanning of the HXB/BXH sets of recombinant inbred strains of the rat for quantitative trait loci associated with conditioned taste aversion.

Authors: Bielavska, E  Kren, V  Musilova, A  Zidek, V  Pravenec, M 
Citation: Bielavska E, etal., Behav Genet 2002 Jan;32(1):51-6.
RGD ID: 631221
Pubmed: PMID:11958542   (View Abstract at PubMed)

In the current study, we searched for quantitative trait loci (QTL) responsible for a conditioned taste aversion (CTA) measured as a decrease in the intake of a saccharin conditioned stimulus followed by an i.p. injection of 0.15 M LiCl (lithium chloride) (2 ml/100 g body weight). A genome scanning for QTL associated with CTA was performed in the HXB/BXH sets of recombinant inbred (RI) strains derived from the Brown Norway (BN-Lx) rat and the spontaneously hypertensive rat (SHR). The BN-Lx progenitor showed a significantly stronger CTA (8.3+/-2.8%) than the SHR progenitor (27.8+/-3.3%, p < .0001). The distribution of CTA values among RI strains was continuous, suggesting a polygenic mode of inheritance. Genome scanning of RI strains with more than 700 gene markers revealed a significant association of CTA with the D2Cebr11s4 marker on chromosome 2 (LRS = 22.7) and with the D4Cebrp149s8 marker on chromosome 4 (LRS = 23.4). The chromosome 2 putative QTL was confirmed by detecting a significant difference in CTA between the SHR progenitor (27.8+/-3.3%) and the SHR-2 (SHR.BN-D2Rat171/D2Arb24) congenic strain (13.1+/-4.4%, p < .01) that are genetically identical except for a segment of chromosome 2 that was transferred onto the genetic background of the SHR from the BN strain.

Phenotype Annotations    Click to see Annotation Detail View

Mammalian Phenotype

TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
abnormal conditioned taste aversion behavior  QTM 631221; 631221 RGD 
impaired conditioned taste aversion behavior  IAGP 631221; 631221compared to SHR/OlaIpcv RGD 

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Objects Annotated

QTLs
Sach6  (Saccharin preference QTL 6)
Sach7  (Saccharin preference QTL 7)

Strains
BXH/Ipcv  (NA)
HXB/Ipcv  (NA)


Additional Information