Fig. 4.

mRNA levels of differentially expressed genes existing in the genomic region of R2 or R3 congenic strains. Genes differentially expressed in epididymal fat between A/J and congenic mice were selected from a DNA microarray analysis (Table 2). The mRNA levels of selected genes exist in the genomic region of R2 congenic (a) or R3 congenic (b) strains. The mRNA levels of selected genes were measured using real-time RT-PCR. Epididymal fats were collected from A/J or A/J-12^SM mice fed the high-fat diet for 7 weeks (n = 5–6, *p < 0.05, **p < 0.01 versus A/J strain by Student’s t-test)