Fig. 2

Sections of two stage 6 embryonic gonads from the same clutch with a testes-like phenotype (A) and normal testes (B). The testes-like phenotype was produced at 36 °C, and is characterised by having an elongated shape typical of a bipotential gonad, with rudimentary seminiferous tubules typical of ovotestes (arrows), but having only a thin cortex layer. For comparison, a typical testes is displayed showing no cortex layer and well developed seminiferous tubules (ST)