Mutant His3 gene (amino acid replacement K36R) in the context of a histone gene repeat tandem array.
When carried in a wild type or hemizygous Df(2L)HisC mutant background, a transgene bearing 12 copies of a mutated form of the histone repeat unit (PBac{12xHisTA.H3K36R} - comprised of 12xHis3HisTA.H3K36R and 12x wild type copies of His1HisTA.wt, His2AHisTA.wt, His2BHisTA.wt and His3HisTA.wt) in a wild type background causes no discernible developmental or fertility defects. 100% of homozygous Df(2L)HisC mutant animals containing one PBac{12xHisTA.H3K36R} transgene die before the end of pupal development.
Df(2L)HisC, His3HisTA.H3K36R, ash122 has some die during P-stage phenotype
Df(2L)HisC, His3HisTA.H3K36R, ash122 has lethal - all die before end of P-stage phenotype
Df(2L)HisC, His3HisTA.H3K36R, ash122 has majority die during larval stage phenotype
Df(2L)HisC, His3HisTA.H3K36R has fertile phenotype
Df(2L)HisC, His3HisTA.H3K36R has lethal phenotype
Df(2L)HisC, His3HisTA.H3K36R has short lived phenotype
When separated from their heterozygous siblings at L1, His3HisTA.H3K36R, Df(2L)HisC/Df(2L)HisC individuals survive till pharate adult stage with some adults escaping to pupal case to die shortly after; in contrast, Df(2L)HisC homozygotes are embryo lethal. The His3HisTA.H3K36R, Df(2L)HisC/Df(2L)HisC escapers do not show homeotic transformations.