Fig. 3.

Recombinant explant culture to assay the ability of turtle gonads to induce mesonephric cell migration. As in Table 1, column D, a normal XX mouse gonad was recombined with a GFP mouse mesonephros (both tissues were collected at 11.5 dpc). A turtle gonad (from stage 16 to hatching, only stages 17, 20 and 23 are shown as representative samples) from either male- or female-producing temperature was added to the top of the XX mouse gonad followed by culture for 48 h at 32.5 °C with or without Letrazole, an aromatase inhibitor. T, turtle gonad; M, mouse gonad; arrows, migrating mouse GFP cells.