The primers used to detect the esgDelta deletion are:
esg-d-F: atTAATGCATCGCCCTGTGTCCTA
esg-d- R:attgtctggcgtttcatttgttca
The mutant deletes from 2L:15333882-15335466 , deleting 1584bp, covering almost the whole coding sequence of esg; 41bp of the coding sequence remain.