Imprecise excision of the P{EPgy2}EY20282 insertion, resulting in a deletion of more than 96bp but less than 813bp of the SA coding region.
Oocytes in SA86 mutant germline clone display defects in synaptonemal complex assembly and the average number of c(3)G-positive patches significantly decreases between regions 2a and 3 compared to control germaria. The number of Cenp-C-labelled foci per cell at metaphase I in stage 14 oocytes is however not changed compared to wild-type, suggesting that sister-centromere adhesion is unaffected.