PHENOTYPE: The Rsxr129S1/Sv allele confers resistance to sex reversal in genetic XY males from consomic line B6.129-Chr YPOS. The RsxrC57BL/6J allele confers sex reversal in genetic XY males from consomic line C57BL/6J-Hbath-J Chr YPOS. [provided by MGI curators]