52F5-52F9;53A1
52F5-52F9;52F10-53A1
bk1 << l(2)52Fe << Rho1 << bk2 << veg
Fails to complement Df(2R)BSC309.
Inferred to overlap with: Df(2R)BSC309.
Df(2R)Jp7/Df(2R)Jp8 embryos retain a grossly normal number of sense organs. However, neuronal disruption is observed, most noticeable in the chordotonal organs. The dendrites of chordotonal organs are consistently malformed, appearing longer and often thicker than their wild-type equivalents. The dendrite tips occasionally appear enlarged around a non-staining "hole" at the point where the dendrite enters the scolopale. The scolopale itself is disorganised, and the arrangement of the neurons are also disorganised with their characteristic dendritic orientations often awry. The single exception to the observation that this combination of deficiencies is a duplication of v'ch1 chordotonal neurons.
Strong second site non-complementing phenotype with zipEbr and zipmhc-c6.1 : malformed phenotype penetrance >75%.
Shows no maternal enhancement of dpphr4.
Midgut development of mutant embryos is wild type.
Homozygous embryos have smaller heads than normal.
Heterozygosity for this deletion suppresses the mutant ovarian phenotype of ovoD2.
The left Df(2R)Jp8 breakpoint lies within CG8405 or CG8414 or in the region between them, and lies in the range 2R:11946618..11987565 (R5) (predicted cytology: 52E1-52E4).
The right Df(2R)Jp8 breakpoint lies within CG4282 or Vha44 or in the region between them, and lies in the range 2R:12212018..12224070 (R5) (predicted cytology: 53B5-53C1).
Breakpoints reported for Df(2R)Jp8 (52F5--9;53A1) are under question as Df(2R)Jp8 appears to delete Rho1 (52E5).
Ref: Saxton et al., 1991, Cell 64: 1093--1102
Limits of break 1 from polytene analysis (FBrf0080145) Left limit of break 2 from inclusion of Khc (FBrf0102325) Right limit of break 2 from polytene analysis (FBrf0080145)