part of expresses sim somatic precursor cell female-specific anatomical entity larval ovary larval swarm cell 2020-01-16T08:46:34Z Somatic cell of the larval ovary that migrates from the anterior to the posterior of the ovary during larval development (Couderc et al., 2002; Irizarry and Stathopoulos, 2015). These are precursors to at least some of the cells of the peritoneal sheath (Slaidina et al., 2020). fly_anatomy.ontology basal cell SW Identifiable by sim expression (Slaidina et al., 2020). FBbt:00048543