Figure 2: Comparative immunohistochemical analysis reveals nuclear germ cell marker PLZF, in goat, sheep, cattle and mouse. Left panel shows PLZF staining, and middle panel shows merge of PLZF and DAPI. Right panel shows magnification of the marked area in the middle panel. White arrows represent germ cells. Mice were taken as positive control according to the data sheet for the PLZF antibody. Bar= 50 �m.