smg1/Df(3L)Scf-R6 third instar larvae show a reduction in the density of terminal dendritic branches of the class IV da neurons.
Embryos derived from hemizygous females arrest very early in embryonic development. Nuclear divisions appear essentially indistinguishable from wild type from fertilisation through cycle 10. However, beginning in cycle 11, the pattern of nuclei becomes increasingly irregular, with a variety of defects including asynchronous mitoses and "gaps" in the otherwise regular array of nuclei at the surface of the embryo. The proportion of mitotic nuclei suggests that progression through mitosis is retarded. The terminal phenotype appears to result from the aggregation of nuclei that fall from the surface into the middle of the embryo. The embryos never achieve the nuclear density seen at the surface of wild-type cycle 14 embryos and fail to cellularise.
smg[+]/smg1 is a suppressor of visible phenotype of Hsap\PABPN117ala.Act88F
smg[+]/smg1, twinGS8115 has lethal | dominant | maternal effect | embryonic stage phenotype
smg[+]/smg1 is an enhancer of eye phenotype of Scer\GAL4GMR.PU, Zzzz\CTGi480.UAS
smg[+]/smg1 is an enhancer of eye phenotype of Hsap\CELF1UAS.cdHa, Scer\GAL4GMR.PU
smg[+]/smg1 is a non-enhancer of eye phenotype of Hsap\MBNL1UAS.Tag:Xpress, Scer\GAL4GMR.PU
smg[+]/smg1 is a suppressor of wing phenotype of Hsap\PABPN117ala.Act88F
smg[+]/smg1 is a non-suppressor of eye phenotype of Hsap\MBNL1UAS.Tag:Xpress, Scer\GAL4GMR.PU
smg1 is a non-suppressor of wing phenotype of Scer\GAL4sca-109-68, nanosαTub84B.3'UTR.nanos+2.UAS
smg1 is a non-suppressor of adult cuticle phenotype of Scer\GAL4sca-109-68, nanosαTub84B.3'UTR.nanos+2.UAS
Embryos derived from twinGS8115 smg1 double heterozygotes show 32% lethality, whereas embryos derived from either single mutant do not show maternal effect lethality.
The frequency of the adolescent phenotype in animals expressing nosαTub84B.3'UTR.nos+2.Scer\UAS under the control of Scer\GAL4sca-109-68 is not altered if they are also carrying smg1.
smg1 suppresses the wing posture defects seen upon expression of Hsap\PABPN117ala.Act88F.
Separable from: a second site lethal mutation on the chromosome.