Insertion within the first intron of the vib gene.
Insertion within the first intron.
larval brain | larval stage (with vib133)
neuroblast | larval stage (with Df(3R)BSC850)
neuroblast | larval stage (with vib133)
neuroblast | larval stage (with vib1105)
vib133/vibj5A6 or vib1105/vibj5A6 transheterozygous larval brain neuroblasts frequently display defective asymmetric cell divisions, as compared to controls: aPKC, Par6, and Gαi, but not Baz, Insc, Pins and Cdc42, fail to localize to a strong apical cortex crescent during metaphase; Mira, Pros, Brat, Numb and Pon fail to localize to a strong basal cortex crescent during metaphase; and the mitotic spindle axis is misoriented with respect to the neuroblast polarity, although centrosomes and spindle architecture are apparently unaffected. Similarly, vibj5A6/Df(3R)BSC850 transheterozygous larval brain neuroblasts also frequently fail to localize aPKC and Mira to opposite apical and basal cortex crescents, respectively, during metaphase. vib133/vibj5A6 or vib1105/vibj5A6 transheterozygous larval brain neuroblasts display highly prevalent cytokinesis defects, as compared to controls.
Larval brains of vibj5A6 mutants exhibit frequent polyploid cells but have normal frequences of anaphases, consistent with a defect in neuroblast cytokinesis.
Germline clones produce eggs with patterning defects: variable deletion of denticle belts and head defects. Lethality occurs during the larval and pupal stages.
vib133/vibj5A6 has abnormal cell polarity | larval stage phenotype, non-suppressible by RokUbi-p63E.GFP
vib133/vibj5A6 has abnormal cell polarity | larval stage phenotype, non-suppressible by Scer\GAL4insc-Mz1407/RokCAT.UAS
vib133/vibj5A6 has larval brain | larval stage phenotype, non-suppressible by RokUbi-p63E.GFP
vib133/vibj5A6 has neuroblast | larval stage phenotype, non-suppressible by RokUbi-p63E.GFP
vib133/vibj5A6 has larval brain | larval stage phenotype, non-suppressible by Scer\GAL4insc-Mz1407/RokCAT.UAS
vib133/vibj5A6 has neuroblast | larval stage phenotype, non-suppressible by Scer\GAL4insc-Mz1407/RokCAT.UAS
vib133/vibj5A6 is partially rescued by vibT63E.UAS.Venus/Scer\GAL4insc-Mz1407
vib133/vibj5A6 is not rescued by Scer\GAL4insc-Mz1407/vibT63A.UAS.Venus
L. and Y. Jan.
Complements: sqz02102. Complements: l(3)0334603346. Complements: l(3)0367503675. Complements: l(3)0640406404. Complements: nos07117. Complements: nosj3B6. Complements: nosj4B6. Complements: l(3)s1922s1922.
Based on the lethal stage of hemizygous alleles (over Df(3R)Dl-BX12), the following vib alleles can be ranked from strongest to weakest as follows: vibj7A3 > vibS110416 > vibEP513 = vibj5A6 > vibS045002c > vibEP651.