Tailorf05717/Tailorc4-1 as well as Tailorf05717/Tailorc4-6 transheterozygotes show significant decrease in both male and female fertility compared to controls.
The germline stem cell (GSCs) niche in the Tailorf05717/Tailorc4-6 testes is not apparently perturbed and the number of GSCs contacting the somatic hub is similar to wild-type controls but the spermatid differentiation is impaired: the mutants display mild individualization complex scattering during the individualization process. The mutants also show smaller seminal vesicles (reflecting the reduction in sperm production) compared to controls.
Tailorc4-1/Tailorf05717 has semi-fertile phenotype, enhanceable by Dis3l2SK5/Dis3l2SK5
Tailorf05717/Tailorc4-6 has semi-fertile phenotype, enhanceable by Dis3l2SK5/Dis3l2SK5
Tailorc4-1/Tailorf05717 is an enhancer of semi-sterile phenotype of Dis3l2SK5
Tailorf05717/Tailorc4-6 is an enhancer of semi-sterile phenotype of Dis3l2SK5
Tailorf05717/Tailorc4-6 has individualization stage spermatid phenotype, enhanceable by Dis3l2SK5/Dis3l2SK5
Tailorf05717/Tailorc4-6 has sperm individualization complex phenotype, enhanceable by Dis3l2SK5/Dis3l2SK5
Tailorf05717/Tailorc4-6 has cystic bulge phenotype, enhanceable by Dis3l2SK5/Dis3l2SK5
Tailorf05717/Tailorc4-6 has seminal vesicle phenotype, enhanceable by Dis3l2SK5/Dis3l2SK5
The subfertility of Tailorf05717/Tailorc4-1 or Tailorf05717/Tailorc4-6 mutants and of the Dis3l2SK5 homozygous mutants is exacerbated further in double mutants and the Tailorf05717/Tailorc4-1;Dis3l2SK5/Dis3l2SK5 or Tailorf05717/Tailorc4-6;Dis3l2SK5/Dis3l2SK5 double mutants are completely sterile.
The spermatid differentiation defects observed in testes of Tailorf05717/Tailorc4-6 mutant males are enhanced by combination with two copies of Dis3l2SK5 : Like in the Dis3l2SK5 single mutants, no cystic bulges or waste bags are formed and the double mutants bear only rudimentary seminal vesicles devoid of mature sperm.