Fig. 5. Effect of photoperiod transfer on uncoupling protein 1 (UCP1) content in
Brandt's voles. (A) SD during both the pre- and the postweaning period
increased UCP1 content, with no significant interaction. Data are means
± s.e.m. (N=8). r.u., relative units. Different letters above
columns signify means that differed significantly. (B) Autoradiograms
displaying UCP1 labelling from individuals from each of the four groups.