Figure 4

Gene expression of germ cell markers in testis and ovaries aged 40–68 days pc (A). The primordial germ cells (PGCs) density (i.e. PGCs per mm³) in testis and ovaries aged 35–68 days pc (B). Note the expression pattern of OCT4 and LIN28A reflect the PGC density pattern. Red represents female, blue represent males.