Fig. 7

Expression of selected target genes for each of the investigated contrasts, as determined by Real Time (TaqMan) PCR. a “luteal regression over luteolysis” (t-test: blue = luteal regression > luteolysis; red = luteolysis > luteal regression), b “mid-gestation over luteolysis” (t-test: blue = mid-gestation > luteolysis; red = luteolysis > mid-gestation; black = unchanged), c “mid-gestation over antigestagen-treatment” (t-test: blue = mid-gestation > antigestagen; red = antigestagen > mid-gestation), and d “antigestagen-treatment over luteolysis” (t-test: red = luteolysis > antigestagen; blue = antigestagen > luteolysis; black = unchanged). Due to the uneven distribution of data, logarithmic transformation was performed and the results are presented as geometric means (Xg) + − geometric standard deviation (SD). An unpaired, two-tailed Student’s t-test was applied; p < 0.05 was considered as statistically significant. RGE = relative gene expression