gish04895/gishMI08417 as well as gishMI08417/gishKG03891 transheterozygous mutant males show decreased average number of germline stem cells in their testes already at post-eclosion day 1 and as the flies age the GSCs continue to be lost at a rapid rate, this however is not due to excessive apoptosis and neither do the mutant GSCs lose their adhesion to the hub cells as shown in gish04895/gishMI08417 or gishMI08417/gishKG03891 males.
No significant difference in the number of GSCs is observed in gishMI08417 heterozygotes, as compared to wild-type controls.
The germline stem cells in the heat-shock induced gishMI08417 mutant germline clones in testes of adult male flies are rapidly lost as the flies age.
gish04895/gishMI08417 is rescued by gishgish.F
gish04895/gishMI08417 is rescued by gishUASp.F/Scer\GAL4VP16.nanos.UTR
gishMI08417/gishKG03891 is rescued by gishgish.F
gishMI08417/gishKG03891 is rescued by gishnanos.F
gishMI08417/gishKG03891 is rescued by gishUASp.F/Scer\GAL4VP16.nanos.UTR
gish04895/gishMI08417 is not rescued by gishUASp.F/Scer\GAL4C587
The age-progressive loss of germline stem cells in adult male testes observed in gish04895/gishMI08417 or gishMI08417/gishKG03891 transheterozygotes is fully rescued by combination with gishgish.F. Similarly, combination with gishnos.F also rescues the phenotype in gishMI08417/gishKG03891 mutants and both gish04895/gishMI08417 and gish04895/gishMI08417 mutants can be rescued by expression of gishScer\UAS.P\T.F under the control of Scer\GAL4nos.UTR.T:Hsim\VP16 (but not Scer\GAL4C587).