Fas1 << bk1 << l(3)89Ea << l(3)89Ee << bk2 << l(3)89En
Dp(3;1)P68/Df(3R)P9 flies have reduced nerve terminal arborisation onto muscles compared to wild-type. Type 2 and type 1 terminals are affected. The excitatory junctional currents of muscle fibre 12 are increased in amplitude compared to wild-type.
Df(3R)P5/Df(3R)P9 heterozygotes lack Abd-B expression in the epidermis and ventral nerve cord.
Heterozygotes show a very weak transformation of haltere to wing, as indicated by an increase in haltere size and the development of a few wing-type marginal bristles. Heterozygous males show reduced pigmentation of segment A5 (indicating a weak transformation to A4), a few bristles develop in the A6 sternite (indicating weak transformation to A5) and A7 develops a tiny tergite (indicating a weak transformation to A6).
Used to show that Ubx represses trichomes in the proximal naked cuticle of the posterior second femur in a dosage dependent manner.
Thoracic and abdominal segments are transformed to parasegment 4 identity.
Ectopic Scr expression causes T1 beard formation in thoracic segments 1 to 3 and abdominal segments 1 to 8 and ectopic salivary glands formation in parasegments 0, 1 and 14.
Defective in gonad assembly.
Homozygous embryos fail to retract the germ band correctly. The spiracles, leg discs and wing/haltere discs are reiterated in the 'abdominal region'.
The A1 transformation phenotype of ftzUal alleles is slightly suppressed in Df(3R)P9 / ftzUal allele heterozygotes. The haltere to wing transformation phenotype of ftzRpl is enhanced in Df(3R)P9 / ftzRpl heterozygotes.
Adult abdominal segments 2-8 partially transformed into copies of the first (Morata, J. Embrol. Exp. Morphol. 78: 319-341).
Germ line clonal analysis shows that the haploinsufficient female sterility of Df(3R)P9 is a somatic defect.
Homozygotes die in late embryonic or early larval stages, showing transformation of metathorax and anterior first abdominal segment to mesothorax (Lewis, 1978; Hayes, Sato and Denell, 1984, Proc. Nat. Acad. Sci. USA 81: 545-49) and transformation of posterior meso- and metathorax to prothorax (Hayes et al., 1984; Ganger, Fehon and Schubiger, 1985, Nature 313: 395-97). When incubated at 18o, homozygous Df(3R)P9 embryos do not complete germ band shortening but Df(3R)P9/Dp(3;3)P5 heterozygotes go through normal development (Ganger and Schubiger, 1984, D. I. S. 60: 108-09). Df(3R)P9/+ flies show reduced male pigmentation on AB5 and AB6, are sterile and have deformed genitalia; Df(3R)P9/Mcp flies are partially fertile. Df(3R)P9/Df(3R)Ubx109 larvae have a short tracheal trunk between AB7 and AB8 and a posterior spiracle in AB8 (Lewis, 1978).