Sox9 is sufficient for functional testis development producing fertile male mice in the absence of Sry

Abstract excerpt

In the dominant mouse mutant Odd Sex, XXOds/+ mice develop as phenotypic, sterile males due to male-pattern expression of Sox9 in XXOds/+ embryonic gonads. To test whether SOX9 was sufficient to generate a fully fertile male in the absence of Sry, we constructed an XY(Sry(-))Ods/+ male mouse, in which the male phenotype is controlled autosomally by the Ods mutation. Mice were initially fertile, but progressively...

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