Fine Time-Course Expression Analysis of Mammalian Sex Determination in 129S1/SvImJ and C57BL/6J XX and XY mice. Mus musculus

We analyzed the differentiation of the bipotential gonad into a testis or an ovary in 2 strains of mice - 129S1/SvImJ (129S1) and C57BL/6J (B6). Our results provide a high resolution view of the initiation and canalization of the differentiation of the gonad. It also reveals global differences in the transcriptome between 129S1 and B6 mice. Overall design: Total RNA was obtained from XX and XY embryonic mouse gonads at 6 equally spaced time points between embryonic day (E) 11.0 and E12.0 from 129S1 and B6 mice. Mice were staged using tail somite numbers