Deletion removing the C-terminal three exons of inv.
enE invE double mutant clones of posterior origin show a variety of phenotypes in the wing. Clones distant from the A/P compartment boundary induce outgrowths and duplications both in and adjacent to the clones. Posterior clones at the A/P boundary sometimes cross into or displace the A/P boundary, while others straddle the normal site of the A/P restriction. Outgrowths and ectopic or disrupted venation are sometimes seen at the site of the normal A/P boundary. In a few rare cases, clones appear to obey the A/P lineage restriction from the posterior side. Posterior clone cells that have crossed or displaced the A/P boundary do not associate normally with anterior cells.
enE, invE has embryonic hindgut phenotype
enE, invE has neuroblast NB7-3 phenotype
enE, invE has wing disc | posterior | somatic clone phenotype
enE, invE has larval somatic muscle cell phenotype
enE, invE has tendon cell phenotype
enE, invE has larval RP2 motor neuron phenotype
enE, invE, wghs.PN has larval RP2 motor neuron | ectopic phenotype
Df(2R)gsb, enE, invE has neuroblast NB5-3 phenotype
Df(2R)gsb, enE, invE has larval RP2 motor neuron | ectopic phenotype
Df(2R)gsb, enE, invE has neuroblast NB5-6 phenotype
enE, invE has neuroblast NB5-3 phenotype
enE, invE has larval RP2 motor neuron | ectopic phenotype
Df(2R)enE embryos (which are mutant for both en and inv) show slight overgrowth of the hindgut, although its overall morphology is almost normal. The border cells of the hindgut (which normally form an anterior and posterior ring at the ends of the hindgut and bilateral strands that connect the two rings) do not differentiate in these embryos.
Df(2R)enE clones (mutant for both en and inv) of posterior origin in the wing disc sort, when in contact with anterior cells, into anterior territory. Df(2R)enE; ci94 double mutant clones of anterior origin in the wing disc straddle the anterior/posterior (A/P) boundary, similar to ci94 single mutant clones. Unlike Df(2R)enE single mutant posterior clones, however, Df(2R)enE; ci94 double mutant clones of posterior origin only partially sort into anterior territory and straddle the A/P boundary (similar to ci94 or Df(2R)enE; ci94 clones originating in the anterior compartment). Df(2R)enE; ci94 double mutant clones of both anterior and posterior origin define straight borders with neighbouring wild-type anterior and posterior cells. Df(2R)enE; ci94 double mutant clones show smooth borders with adjacent wild-type cells when situated entirely within the posterior compartment. Unlike Df(2R)enE single mutant clones, Df(2R)enE smo3 double mutant clones of posterior origin in the wing disc invariably occupy only posterior territory and define straight borders to anterior cells at the normal position of the anterior/posterior (A/P) boundary. Df(2R)enE smo3 double mutant clones of anterior origin also occupy posterior territory and define straight borders to anterior cells at the normal position of the A/P boundary.
The specification of the majority of tendon cells is eliminated in Df(2R)enE embryos. Some muscles in these embryos have abnormal free ends.
enE invE embryos have duplicated RP2 neurons in several hemisegments. This is due to the transformation of the NB5-3 neuroblast to a NB4-2 fate. enE invE embryos expressing wghs.PN, or enE invE Df(2R)gsb triple mutants have triplicated RP2 neurons. The triplication in enE invE Df(2R)gsb embryos is due to transformation of the NB5-3 and NB5-6 neuroblasts to a NB4-2 fate. gsbhs.PBH prevents the duplication of RP2 neurons seen in enE invE embryos when expressed during stage 8. ptc9 enE invE triple mutants lack RP2 neurons.