Homozygous pont5.1 larvae hatch at normal rates, showing that the zygotic product is not essential for embryogenesis. The mutant larvae live for up to 7 days but grow only minimally in size. Clones of pont5.1 cells located within phenotypically wild-type wing imaginal discs grow poorly, indicating that the observed defects are cell-autonomous. Only a few small pont5.1 clones survive at 72 hours after induction of the clones, with none observed after 120 hours, suggesting cell competition. In contrast, when the cells surrounding the pont5.1 clones are are growth impaired, the mutant clones thrive even at 120 hours after induction. pont5.1 cells are not smaller than wild-type control cells.
Mutant animals die at first instar larval stage.
brm2, pont[+]/pont5.1 has visible | dominant phenotype, suppressible by pontUAS.cDa/Scer\GAL4arm.PS
pont[+]/pont5.1 is an enhancer of abnormal developmental rate phenotype of MycP0
pont[+]/pont5.1 is an enhancer of partially lethal - majority die phenotype of MycP0
MycP0, pont[+]/pont5.1 has decreased cell number phenotype
MycP0, pont[+]/pont5.1 has decreased cell size phenotype
pont5.1, rept35 has lethal | larval stage phenotype
MycP0, pont5.1 has decreased cell number phenotype
MycP0, pont5.1 has decreased cell size phenotype
brm2, pont[+]/pont5.1 has wing phenotype, suppressible by pontUAS.cDa/Scer\GAL4arm.PS
pont[+]/pont5.1 is an enhancer of ommatidium phenotype of MycP0
pont5.1 is an enhancer of wing margin phenotype of Scer\GAL4en-e16E, shgi.UAS.Tag:SS(aos),Tag:MYC
pont5.1 is a suppressor of wing margin bristle | ectopic phenotype of Scer\GAL4en-e16E, armUAS.cSa
The low-penetrance "held-out" wing phenotype of brm2/+ adults is enhanced in a pont5.1/+ background. Held-out wings are observed in 15% of double-heterozygous animals compared to 1.4% in brm2/+ mutants. Co-expression of pontScer\UAS.cDa under the control of Scer\GAL4arm.PS in brm2/pont5.1 animals reduces the penetrance of the wing phenotype to 1.7%.
Triple-heterozygous brm2, pont5.1, and rept35 mutant adults have a "held-out" wing phenotype at a low penetrance (2.1%), quite similar to the penetrance observed in brm2/+ animals.
Created by imprecise excision of the P{lacW}pontS022905a insertion.