Splice site mutation between amino acids 126 and 127, the third intron is not excised.
An unspecified mutation in the splice donor site. The splice site mutation has been arbitrarily mapped by a FlyBase curator to the first base of the splice donor site.
Double mutants with otu5 mutants display degenerate egg chambers, mutant phenotypes are cumulative.
Egg chambers contain 16 nurse cells and no oocyte, many egg chambers are degenerating.