Fig. 3. Deletion mutants. Position of the starting transposon insertion (EP(2)2107) is indicated. EP(2)2107 homozygotes are viable and fertile although expression of achi class 1 transcripts is reduced. The Df(2R)achi¹ deletion extends at least to the 3' end of vis exon 4. Prediction of genes in the region is based on release 3 of the genome annotation. Genes transcribed left to right in the figure are above the line, those in the right to left orientation are below the line.