Wild-type His1 gene in the context of a histone gene repeat unit.
Wild-type His2A gene in the context of a histone gene repeat unit.
Wild-type His2B gene in the context of a histone gene repeat unit.
Wild-type His3 gene in the context of a histone gene repeat unit.
Wild-type His4 gene in the context of a histone gene repeat unit.
Contains three copies of the histone gene repeat unit (each repeat contains one copy of each of His1, His2A, His2B, His3 and His4).
Two or four copies of M{3xHisGU.wt} rescue the formation of homozygous Df(2L)BSC104 clones in the wing disc.