Imprecise excision of P{SUPor-P}maguKG02847b generates a deletion uncovering the magu gene. The deletion begins in P{SUPor-P}maguKG02847b and extends to genomic coordinate 5966K.
maguKG76/maguf02256 transheterozygous testes contain fewer germ cells. The median germline stem cell number per testis is only 2.5, whereas sibling controls carry a median of 8 germline stem cells at 3rd instar larval stage.