UASt regulatory sequences drive expression of a 0.8kb genomic fragment that includes the mir-278 stem loop region. The sequence was isolated from mir-278mirvana-1 mutants and thus contains a sequence polymorphism that mutates the mature mir-278 miRNA at position 5 from U to A.
Flies that express mir-278KN448.mirvana-1.Scer\UAS under the control of Scer\GAL4GMR.PF show no overgrowth in the eye but have a mild rough eye phenotype.
The distances between ommatidial centres in clones expressing mir-278KN448.mirvana-1.Scer\UAS under the control of Scer\GAL4GMR.PB is about equal to wild type.
mir-278KN448.mirvana-1.UAS/Scer\GAL4GMR.PF is a suppressor of abnormal size | adult stage phenotype of grimGMR.PC
mir-278KN448.mirvana-1.UAS/Scer\GAL4GMR.PF is a suppressor of ommatidium phenotype of grimGMR.PC
mir-278KN448.mirvana-1.UAS/Scer\GAL4GMR.PF is a suppressor of interommatidial bristle phenotype of grimGMR.PC
The small, rough eye phenotype seen in both WGMR.PG and grimGMR.PC flies is partially suppressed by the expression of mir-278KN448.mirvana-1.Scer\UAS under the control of Scer\GAL4GMR.PF.