Fig. 5. Cytological region 72D; 73E. The cytological map is represented across the top; the centromere is towards the right. The placements of the fax, Abl, dab and nrt genes are shown. Solid lines represent the cytological extent of the chromosomal deficiencies as reported in FlyBase (http://flybase.bio.indiana.edu). The genotype of these deficiencies with regard to fax, Abl, dab and nrt is indicated to the right. Based on data reported previously (Henkemeyer et al., 1987), deficiencies that dominantly enhance the Abl mutant phenotype are indicated by asterisks. Although the distal breakpoint of Df(3L)st100.62 is listed as 72F3-4 in FlyBase and fax is placed in 72E5-F1, Hill et al. (Hill et al., 1995) report that Df(3L)st100.62 is null for fax. In(3L)std11 contains the deficiency shown as well as an inversion (73E1-2).