Deletion of 308 bp; coordinates determined from Figure 5B of FBrf0051381 and differ from the coordinates listed in Table 1.
adult abdominal segment 3 & chaeta (with sina2)
adult abdominal segment 3 & microchaeta (with sina2)
adult abdominal segment 3 & tormogen cell | supernumerary (with sina2)
adult abdominal segment 3 & trichogen cell | supernumerary (with sina2)
adult abdominal segment 4 & chaeta (with sina2)
adult abdominal segment 4 & microchaeta (with sina2)
adult abdominal segment 4 & tormogen cell | supernumerary (with sina2)
adult abdominal segment 4 & trichogen cell | supernumerary (with sina2)
mesothoracic tergum & chaeta (with sina2)
mesothoracic tergum & microchaeta (with sina2)
mesothoracic tergum & tormogen cell | supernumerary (with sina2)
mesothoracic tergum & trichogen cell | supernumerary (with sina2)
sina3/sinaA4 and sina3/Df(3L)sinaSH transheterozygotes exhibit frequent X-chromosome and 4[[th]]-chromosome non-disjunction, as well as defects in synaptonemal complex assembly during oogenesis, with components forming abnormal polycomplexes, which are observed in both oocytes and nurse cells by stage 2.
sina3/Df(3L)sinaSH transheterozygotes exhibit defects in synaptonemal complex assembly during oogenesis, with components forming abnormal polycomplexes
sina3 homozygous clones in the adult midgut virtually lack enteroendocrine cells, unlike the expected 6-8% in control clones, but exhibit a similar number of cells as compared to controls.
Mutants show a double- bristle phenotype.
41% of the notal microchaetae and 62% of the microchaetae on abdominal segments 3 and 4 are missing in sina2/sina3 flies. 17.2% of bristles on the notum are duplicated, having 2 hairs emerging from 2 sockets or a fused socket. 44.5% of bristles on abdominal segments 3 and 4 are duplicated (2 hairs/2 sockets) and 20.9% show other defects (including 1 hair surrounded by 2-3 sockets, and 2 socket or 4 socket clusters without shafts). Embryonic development, including development of the es organs, is normal in sina2/sina3 animals.
Amorph based on the phenotypes of hemizygous <up>sina1/Df(3L)st-g18</up> versus that of homozygous flies.
This allele probably represents complete loss of function of the sina gene. In the ommatidia the R7 photoreceptor cell is always missing, the R7 precursor adopting a cone cell fate, and sometimes one or two cells of the R1-R6 class are missing as well. The normal trapezoidal arrangement of the R1-R6 cells is disorganised, and the R8 cell is often found in uncharacteristic positions. Other adult sensory organs are also affected: sensory bristles distributed over the body surface are frequently missing, with neither the cuticular bristle sheath nor the socket being present, affected sensory organs including the microchaetae and macrochaetae of the head, notum, abdomen and wing margin, and the stout and slender bristles of the anterior wing margin. The phenotype is most severe with bristles located on the abdomen, where often only a minor fraction of the normal number of bristles are present. Also, many of the remaining bristles have two or three sheaths emerging from a single socket. There is also a 10-fold reduction in adult lifespan, and adult behaviour is generally lethargic and uncoordinated. Neither males nor females are fertile, although they produce morphologically normal sperm and eggs, respectively.
sina3 is a non-enhancer of visible phenotype of Scer\GAL4GMR.PF, cindrRNAi.PC.PD.UAS
sina3 is a non-enhancer of visible phenotype of Pp2B-14Dact.GMR
sina3 is a non-enhancer of visible phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3 is a suppressor of visible phenotype of Src64BΔ540.hs.2sev
sina3 is a non-suppressor of visible phenotype of Scer\GAL4GMR.PF, cindrRNAi.PC.PD.UAS
sina3 is a non-suppressor of visible phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3 is a non-suppressor of visible phenotype of Pp2B-14Dact.GMR
sina3/sina2 has photoreceptor cell R1 | third instar larval stage phenotype, enhanceable by msi1/msi1
sina3/sina2 has photoreceptor cell R6 | third instar larval stage phenotype, enhanceable by msi1/msi1
sina3/sina2 has photoreceptor cell R7 | third instar larval stage phenotype, enhanceable by msi1/msi1
sina3/sina2 has external sensory organ phenotype, enhanceable by msi1/msi1
msi1, sina3/sina2 has photoreceptor cell R1 | third instar larval stage phenotype, suppressible by ttkGD4414/Scer\GAL4lz-gal4
msi1, sina3/sina2 has photoreceptor cell R6 | third instar larval stage phenotype, suppressible by ttkGD4414/Scer\GAL4lz-gal4
msi1, sina3/sina2 has photoreceptor cell R7 | third instar larval stage phenotype, suppressible by ttkGD4414/Scer\GAL4lz-gal4
sina3/sina2 has photoreceptor cell R7 phenotype, suppressible by edslH8/ed1X5
sina3/sina2 has ommatidium phenotype, suppressible by edslH8/ed1X5
msi1, sina3/sina2 has ommatidium phenotype, suppressible by ttkosn
msi1, sina3/sina2 has rhabdomere phenotype, suppressible by ttkosn
sina3/sina2 is an enhancer of external sensory organ phenotype of msi1
sina3/sina2 is an enhancer of ommatidium phenotype of msi1
sina3 is a non-enhancer of eye phenotype of Scer\GAL4GMR.PF, cindrRNAi.PC.PD.UAS
sina3 is a non-enhancer of eye phenotype of Pp2B-14Dact.GMR
sina3 is a non-enhancer of eye phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3/sina2 is a suppressor of eye phenotype of phylGMR.PC
sina3 is a suppressor of phenotype of phylhs.sev
sina3 is a suppressor of eye phenotype of Src64BΔ540.hs.2sev
sina3 is a non-suppressor of eye phenotype of Scer\GAL4GMR.PF, cindrRNAi.PC.PD.UAS
sina3 is a non-suppressor of eye phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3 is a non-suppressor of eye phenotype of Pp2B-14Dact.GMR
msi1, sina3/sina2, ttkosn has ommatidium phenotype
msi1, sina3/sina2, ttkosn has rhabdomere phenotype
sina1/sina3, svp2.sev has photoreceptor cell R7 phenotype
sina1/sina3, svp1.sev has photoreceptor cell R7 phenotype
Double mutants of sina2/sina3 with msi1 show a synergistic, not additive, eye phenotype. Ommatidial arrays are disturbed, eyes consequently roughened and ommatidia do not contain more than five rhabdomeres. Cone cell array is disturbed. 30% of the ommatidia of sina2 msi1 ttkosn/sina3 msi1 show the normal number and arrangement of photoreceptor cells. The cone cell defects of sina2 msi1/sina3 msi1 are also suppressed by ttkosn.
The phylGMR.PC eye phenotype is completely suppressed in a sina2/sina3 background; the eyes are normal, except for the lack of R7 photoreceptor cells due to the absence of sina function. sina2/sina3 flies carrying both phylGMR.PC and ttk88.GMR.T:Hsap\MYC have very disrupted eyes, similar to those of flies carrying ttk88.GMR.T:Hsap\MYC alone.
No interaction with P{sev-svp1} or P{sev-svp2} exists.