Homozygotes and heterozygotes show no detectable phenotype in a wild-type background.
Su(Sxlfs)X2X2 is a suppressor of female sterile phenotype of Sxlf4
Su(Sxlfs)X2X2 is a suppressor of female sterile phenotype of Sxlf5
Su(Sxlfs)X2X2, Sxlf4 has female fertile phenotype
Su(Sxlfs)X2X2, Sxlf5 has female fertile phenotype