First Author | Suto J | Year | 2003 |
Journal | Biochem Genet | Volume | 41 |
Issue | 9-10 | Pages | 325-41 |
PubMed ID | 14974682 | Mgi Jnum | J:87328 |
Mgi Id | MGI:2684514 | Doi | 10.1023/b:bigi.0000006033.99978.8b |
Citation | Suto J, et al. (2003) Quantitative trait locus analysis of plasma cholesterol and triglyceride levels in KK x RR F2 mice. Biochem Genet 41(9-10):325-41 |
abstractText | A previous quantitative trait locus (QTL) study on hyperlipidemia in C57BL/6J x KK-Ay/a F2 mice identified three significant cholesterol QTLs (Cq1 and Cq2 on chromosome 1, and Cq3 on chromosome 3), and a suggestive triglyceride QTL on chromosome 9. An alternative analysis of this study identified a novel cholesterol QTL on chromosome 9 (Cq4), and a significant triglyceride QTL on chromosome 9 (Tgq1). In the present study, QTL analysis was performed on KK x RR F2 mice. A significant cholesterol QTL (Cq5, lod score 5.6) was identified on chromosome 9, and a significant triglyceride QTL (Tgq2, lod score 4.7) was identified on chromosome 8. The Cq5 locus was mapped to a region similar to the Cq4 locus. On the other hand, the Tgq2 locus overlapped with the QTL region responsible for glucose intolerance (Giq1) that was identified in a previous study. The results suggest that a different combination of QTLs is involved in the trait when a different counterpart strain is used. Identification of distinct, but related traits in an identical chromosomal region will facilitate revealing the responsible gene. |