Male/female strain, propagate by crossing. XX females and tra-1 XX males. Low fertility. Fertile females and fertile males; male-biased sex ratio. Strain with sex determined by a feminizing fragment chromosome (LGIIIR); unusual sex ratio. Reference: Strain 15 in Hodgkin (2002) PMID: 12399387.

Male/female strain, propagated by crossing. eDp25 carries tra-1 gain-of-function allele. Anatomically normal XX females, tra-1(e1732) XO males, and intersexual tra-1(e1732) XX and e1732; eDp25 XO. References: Hodgkin (1987) PMID: 3428597. Zarkower et al. (1994) PMID: 7520378.