Comparison of relative expression levels of <i>Ucp1</i> and <i>Pgc1a</i> between WATs and BAT.

<p>(<b>a–b</b>) <i>Ucp1</i> (<b>a</b>) and <i>Pgc1a</i> (<b>b</b>) expression levels in aWAT, iBAT and sWAT of <i>H. armiger</i> after cold acclimation relative to the levels in aWAT exposed to 30°C for 7 days. (<b>c–d</b>) <i>Ucp1</i> (<b>c</b>) and <i>Pgc1a</i> (<b>d</b>) expression levels in sWAT, iBAT and aWAT of mice relative to the levels in sWAT exposed to 30°C for 7 days.