Adrenals and gonads development – SF-1 expression patterns. The key events of steroidogenic tissues development in mice are shown. Molecular players in male sex (SRY, SOX9, SF-1, Dax-1) and female sex determination (Wnt4, Dax-1) are shown. Dax-1 function in sex determination is still unclear. Abreviations : E, embryonic day; dpc, days post coïtum ; dpp, days post partum; dpo, days post ovulation. SF-1 levels of expression are schematically presented below the time scale.