6.0kb genomic fragment containing stg.
Imaginal disc cells that are homozygous for stg2 divide only once, producing 2-celled clones that are eliminated by cell competition. This phenotype is rescued by stgt6.0; stg2 cells in the imaginal disc carrying one of these transgenes divide many times and produce large clones of cells. The clones are smaller than their wild-type sister clones and show increased cell size. The cells have an increased G2 phase.