mgrG5308/Df(3R)Exel6160 mutants show ectopic neuroblasts in third instar larval brains and defects in asymmetric protein segregation in neuroblasts (both during metaphase and telophase) as well as mitotic spindle orientation. mgrG5308/Df(3R)Exel6160 neuroblasts often contain irregular number of centrosomes during mitosis (either more than two or just one - leading to monopolar mitotic spindle) and majority of them fail to assemble astral microtubules during metaphase.
mgrG5308 has increased cell number | third instar larval stage phenotype, enhanceable by pinsP89
mgrG5308 has abnormal neuroanatomy phenotype, enhanceable by Pfdn2Δ10
mgrG5308 has abnormal neuroanatomy | third instar larval stage phenotype, enhanceable by pinsP89
mgrG5308 is an enhancer of abnormal neuroanatomy | third instar larval stage phenotype of Pfdn2Δ10
mgrG5308 is a suppressor of abnormal neuroanatomy | third instar larval stage phenotype of pinsP89
mgrG5308 is a suppressor of decreased cell number | third instar larval stage phenotype of pinsP89
mgrG5308 has neuroblast | third instar larval stage phenotype, enhanceable by Pfdn2Δ10
mgrG5308 has mitotic spindle | third instar larval stage phenotype, enhanceable by Pfdn2Δ10
mgrG5308 has centrosome | third instar larval stage phenotype, enhanceable by Pfdn2Δ10
mgrG5308 is an enhancer of neuroblast | third instar larval stage phenotype of Pfdn2Δ10
mgrG5308 is an enhancer of mitotic spindle | third instar larval stage phenotype of Pfdn2Δ10
mgrG5308 is an enhancer of centrosome | third instar larval stage phenotype of Pfdn2Δ10
mgrG5308 is an enhancer of spindle microtubule | third instar larval stage phenotype of Pfdn2Δ10
mgrG5308 is a suppressor of neuroblast | third instar larval stage phenotype of pinsP89
The increased average number of brain neuroblasts (compared to wild-type) seen in mgrG5308 homozygous third instar larvae is strongly enhanced by combination with pinsP89 although pinsP89 mutants on their own display decreased number of brain neuroblasts compared to wild-type.
The microtubule and centrosomal abnormalities (irregular number of centrosomes and spindle defects, including loss of astral microtubules) observed in brain neuroblasts in Pfdn2Δ10 single mutant and mgrG5308/Df(3R)Exel6160 third instar larvae are exacerbated further in Pfdn2Δ10,mgrG5308 double mutants.