abnormal size | larval stage (with E2f191)
eye disc & mitotic cell cycle
eye disc | larval stage (with E2f191)
imaginal disc (with E2f191)
E2f1rM729/E2f1rM729 somatic clones of terminal tracheal cells are smaller in size, have reduced nuclei, less branches and show gas filling defects compared to wild-type controls in third instar larvae. Heterozygous neighboring stalk cells invade the small mutant terminal cells leading to the formation of two or more adherens junctions (not one as in wild-type controls ) between them and show a compensatory increase in cell size.
Homozygous clones in the developing optic lobe are very small. Some of the mutant cells are extruded from the neuroepithelium and basally enter the medulla cortex, where ectopic neuroblasts form prematurely.
E2f1rM729 germline stem cell (GSC) clones behave similarly to control GSC clones and do not dramatically affect GSC maintenance.
Homozygous clones in the eye disc are very small.
E2frM729 eye disc clones in a Minute/+ background are extremely small.
E2f91/E2frM729 transheterozygotes can develop into the late second instar or early third instar larval stage at a very slow pace (around 13 days after egg laying), but do not develop into pupae. BrdU incorporation is not seen in the optic lobe region of the brain in day 13 E2f91/E2frM729 larvae, in contrast to wild-type third instar larvae. The eye discs of E2f91/E2frM729 larvae are very small and have only a few cells labelled with BrdU with no specific pattern.
Cells in homozygous clones induced in the wing pouch of the wing disc become enlarged and are gradually lost from the disc epithelium.
Clones induced in the eye in the first or second larval instar are not detected in the adult eye. They can be detected in the eye disc, but are much smaller than the adjacent twin spots, with fewer cells. These cells have initiated neuronal differentiation. Resulting ommatidia have incomplete sets of photoreceptors, and photoreceptors that are present often have abnormal morphology. Rhabdomeres are small in diameter, the rhabdomeres of the outer photoreceptors may project centrally and the photoreceptors do not extend the full length of the retina.
Cells in the CNS that normally enter endocycles fail at S17. Replication either fails or occurs at a very low rate.
E2f191/E2f1rM729 has abnormal developmental rate phenotype, suppressible by Df(2R)vg-B/Dpa2
E2f191/E2f1rM729 has abnormal developmental rate phenotype, suppressible by Df(2L)G5.1/E2f276Q1
Rbf120a/E2f1rM729 is an enhancer of increased cell death | somatic clone phenotype of Tsc1f01910
E2f1rM729 is a non-enhancer of visible phenotype of DpGMR.PD, E2f1GMR.PD
E2f1rM729/E2f1rM729 is a suppressor of abnormal cell number | somatic clone | spermatogenesis phenotype of RbfGL01293, Scer\GAL4Tub.PU
E2f1i2/E2f1rM729 is a suppressor of increased cell death | somatic clone | third instar larval stage phenotype of Rbf15aΔ, Stam19
E2f1rM729 is a suppressor of increased cell death | somatic clone phenotype of Rbf120a, Tsc1f01910
E2f[+]/E2f1rM729 is a suppressor of increased cell death phenotype of DrefUAS.cSa, Scer\GAL4GMR.PS
E2f1rM729 is a non-suppressor of visible phenotype of DpGMR.PD, E2f1GMR.PD
E2f191/E2f1rM729, E2f2g5/E2f276Q1 has decreased cell death | wandering third instar larval stage phenotype
E2f1i2/E2f1rM729, Rbf14 has partially lethal phenotype
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt6a14
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt4d30
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt3d23
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt5d8
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt4d16
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt5d6
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt6a31
E2f1rM729 has eye | somatic clone phenotype, suppressible by l(3)mbt3d33
E2f1rM729 has eye | somatic clone phenotype, suppressible by Doa6d2
E2f1rM729 has eye | somatic clone phenotype, suppressible by Doa6a21
E2f1rM729 has eye | somatic clone phenotype, suppressible by Doa5d19
E2f1rM729 has eye | somatic clone phenotype, suppressible by Doa6a52
E2f1rM729 has eye | somatic clone phenotype, suppressible by Doa5d7
E2f1rM729 has eye | somatic clone phenotype, suppressible by gfzf6a27
E2f1rM729 has eye | somatic clone phenotype, suppressible by B525d21
E2f1rM729 has eye | somatic clone phenotype, suppressible by B523d16
E2f1rM729 has eye | somatic clone phenotype, suppressible by B523d24
E2f1rM729 has eye | somatic clone phenotype, suppressible by Slimp7d21
E2f1rM729 has eye | somatic clone phenotype, suppressible by Slimpf07858
E2f1rM729 has eye | somatic clone phenotype, suppressible by bel7d19
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-A7d13
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-A6a39
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-B4d26
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-B6a11
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-C1d24
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-C3d28
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-D6a47
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-E3d25
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-F6b9
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-G6a3
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-H6a50
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-I6d9
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-J6a8
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-K6b12
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-L6b19
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-M6b31
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-N4d22
E2f1rM729 has eye | somatic clone phenotype, suppressible by Su(E1)-O6a19
E2f1rM729 has eye disc | somatic clone phenotype, suppressible by E2f2c03344
E2f1rM729 has eye disc | somatic clone phenotype, suppressible by bel7d19
E2f1rM729 has eye disc | somatic clone phenotype, suppressible by belL4740
E2f1rM729 has eye disc | somatic clone phenotype, suppressible by smo1
E2f191/E2f1rM729 has imaginal disc phenotype, suppressible by Df(2L)G5.1/E2f276Q1
E2f1rM729 has eye disc | somatic clone phenotype, non-suppressible by Su(H)VP16.UAS/Scer\GAL4GMR.PF
E2f1rM729 is an enhancer of eye disc | somatic clone phenotype of Tsc1f01910
Rbf120a/E2f1rM729 is an enhancer of eye disc | somatic clone phenotype of Tsc1f01910
E2f1rM729, Scer\GAL4GMR.PF is an enhancer of eye phenotype of E2f2UAS.cFa, Scer\GAL4GMR.PF
E2f1rM729, Scer\GAL4GMR.PF is an enhancer of ommatidium phenotype of E2f2UAS.cFa, Scer\GAL4GMR.PF
E2f1rM729/E2f1rM729 is a suppressor of somatic cell of testis | somatic clone phenotype of RbfGL01293, Scer\GAL4Tub.PU
E2f1i2/E2f1rM729 is a suppressor of eye disc | somatic clone | third instar larval stage phenotype of Rbf15aΔ, Stam19
E2f1rM729 is a suppressor of eye disc | somatic clone phenotype of Rbf120a, Tsc1f01910
E2f1rM729 is a suppressor of eye disc morphogenetic furrow | somatic clone phenotype of Rbf120a, Tsc1f01910
E2f1i2/E2f1rM729 is a suppressor of photoreceptor cell R8 | somatic clone | third instar larval stage phenotype of Rbf15aΔ, rno1
E2f1rM729 is a suppressor of female germline stem cell | germline clone phenotype of bamΔ86
E2f[+]/E2f1rM729 is a suppressor of eye phenotype of DrefUAS.cSa, Scer\GAL4GMR.PS
E2f191/E2f1rM729, E2f2c03344/E2f276Q1 has nucleus | increased number | third instar larval stage phenotype
E2f276Q1/E2f2c03344, E2f191/E2f1rM729 third instar larvae exhibit binucleated cells in the fat body.
An E2f1rM729 mutant background dominantly enhances the Scer\GAL4GMR.PF>lin-52GD12885 eye phenotype. This is accompanied by a corresponding increase in hid protein and elevated apoptosis in the eye-antennal disc.
Tsc1f01910 E2frM729 double mutant eye disc clones in a wild-type background are smaller than Tsc1f01910 single mutant eye disc clones.
When Tsc1f01910 E2frM729 double mutant clones are generated in Rbf120a, the sizes of the Tsc1f01910 E2frM729 double mutant clones are much smaller than that of Tsc1f01910 single mutant clones.
The prevailing cell death phenotype observed in Rbf120a Tsc1f01910 double mutant clones at the morphogenetic furrow is no longer present in Rbf120a E2frM729 Tsc1f01910 triple mutant cells, indicating that the increased level of ectopic cell death observed in Rbf120a Tsc1f01910 double mutant cells is E2f-dependent.
Each of l(3)mbt6a14, l(3)mbt4d30, l(3)mbt3d23, l(3)mbt5d8, l(3)mbt4d16, l(3)mbt5d6, l(3)mbt6a31, l(3)mbt3d33, Doa6d2, Doa6a21, Doa5d7, gfzf6a27, B525d21, B523d16, B523d24, CG311337d21, CG31133f07858, bel7d19, Su(E1)-A7d13, Su(E1)-A6a39, Su(E1)-B4d26, Su(E1)-B6a11, Su(E1)-C1d24, Su(E1)-C3d28, Su(E1)-D6a47, Su(E1)-E3d25, Su(E1)-F6b9, Su(E1)-G6a3, Su(E1)-H6a50, Su(E1)-I6d9, Su(E1)-J6a8, Su(E1)-K6b12, Su(E1)-L6b19, Su(E1)-M6b31, Su(E1)-N4d22 and Su(E1)-O6a19 can suppress the proliferation block of E2frM729 clones, allowing recovery of double mutant clones in the eye.
The second mitotic wave is strongly restored in l(3)mbt3d33 E2frM729 and Su(E1)-A7d13 E2frM729 double mutant clones in the eye disc.
The second mitotic wave is weakly rescued in CG311337d21 E2frM729 and gfzf6a27 E2frM729 double mutant clones in the eye disc, with the double mutant cells entering the second mitotic wave several columns more posterior than in wild-type cells. In addition BrdU incorporation persists several columns more posterior in the double mutant cells than in the adjacent wild-type cells.
The second mitotic wave is weakly rescued in Doa6d2 E2frM729 double mutant clones in the eye disc, with double mutant cells only being sporadically labelled with BrdU in the second mitotic wave. Those double mutant cells that do incorporate BrdU are always found to be significantly more than adjacent wild-type cells that incorporate BrdU.
Scer\GAL4GMR.PF-driven expression of Su(H)Scer\UAS.T:Hsim\VP16 is unable to rescue the small size of E2frM729 eye disc clones.
In wild-type animals, exposure to 40Gy of γ rays induces a distinct pattern of apoptosis in the wing disc, focussed on the the wing pouch, but excluding the DV boundary region and prospective vein. In E2frM729/E2f91; E2f276Q1/E2f2g5 animals, the same irradiation treatment induces a different pattern of apoptosis a smaller number of apoptotic cells are clustered in the center of the wing pouch, many in the D-V boundary region or prospective veins.
The addition of E2f276Q1/Df(2L)G5.1 to E2f91/E2frM729 flies almost completely suppresses the E2f91/E2frM729 phenotypes - mutants develop normally without any significant delay in larval growth, reach pupal stage and finally die as mid- or late pupae. The pattern of DNA synthesis in eye discs is largely normal. The addition of Dpa2/Df(2R)vg-B to E2f91/E2frM729 flies almost completely suppresses the E2f91/E2frM729 phenotypes - mutants develop normally without any significant delay in larval growth.
The rough eye phenotype seen upon expression of DrefScer\UAS.cSa in the developing eye under the control of Scer\GAL4GMR.PS is suppressed in an E2frM729 heterozygous background.
Approximately 50% of the expected number of Rbf14/Y ; E2fi2/E2frM729 flies survive to the adult stage, and the development of these flies is not significantly delayed compared to sibling flies. The surviving flies have normal eyes, normal macrochaetae on the notum and normal wings and legs. The larval lethality of E2f91/E2frM729 animals can be suppressed by Rbf120a/Rbf14; the larvae develop into large late third instar larvae and many can pupate. Some Rbf120a/Rbf14 ; E2f91/E2frM729 animals can develop into pharate adults with adult eyes, legs and wing structures. The development of these larvae is significantly retarded compared to wild-type larvae, with the earliest pupae observed at around day 11 after egg laying. The normal pattern of DNA replication in the optic lobe region is restored in E2f91/E2frM729 larvae that are also carrying Rbf120a/Rbf14. In Rbf120a/Rbf14 ; E2f91/E2frM729 eye discs the overall pattern of DNA replication is normal. No significant cell death is seen in these eye discs. In late third instar discs there are about 25 rows of developing photoreceptor cells (as in wild-type discs) but there are much fewer cells anterior to the morphogenetic furrow than in wild type.
Dominantly enhances the rough eye phenotype of CycEJP homozygotes.
Df(3R)Exel6186/E2f1rM729 is partially rescued by E2f1UAS.a.Tag:FLAG,Tag:MYC/Scer\GAL4Ubi.PU
Df(3R)Exel6186/E2f1rM729 is partially rescued by E2f1UAS.a.Tag:FLAG,Tag:MYC/Scer\GAL4Ubi.PU/E2f1UAS.b.Tag:FLAG,Tag:MYC
Df(3R)Exel6186/E2f1rM729 is partially rescued by Scer\GAL4Ubi.PU/E2f1UAS.b.Tag:FLAG,Tag:MYC
The early larval lethality of E2f1rM729/Df(3R)Exel6186 transheterozygotes is partially rescues by Scer\GAL4Ubi.PU-driven expression of either E2f1UAS.a.Tag:FLAG,Tag:MYC or E2f1UAS.b.Tag:FLAG,Tag:MYC (giving rise to few, severely developmentally delayed third instar larvae and pupae, but no pharate adults), or of both transgenes (giving rise to the expected numbers of mildly developmentally delayed third instar larvae, pupae and to pharate adults, but to no adults).
G. Rubin.
Complements: InR05545.
Transposase-mediated excision of the P{PZ} produces ry- flies that lack both the insertion and the lethal phenotype.
mir-11Δ1 complements E2frM729.