Deletion of exons 3-10.
Deletion made by modified "ends-out" homologous recombination that is reported to remove exons 3-10 (endpoints derived from primer sequences).
Mutant adults appear normal but display defects in locomotor activity, and mutant females show partial sterility.
Approximately 10% of the primordial germ cells arrest outside the embryo after germ band extension in mutant animals. Of those that can enter the embryo, all are capable of transmigration, but only 20% appropriately migrate towards the gonadal mesoderm. The remaining primordial germ cells are scattered throughout the posterior embryos.
Border follicle cell clusters are normal in number and size in mutant egg chambers, but are significantly delayed in the initial phase of migration compared to control clusters, such that at stage 10, nearly half of the mutant border cells are still delayed, whereas more than 90% of wild-type clusters have traversed the egg chamber to the oocyte. Analysis of migration in the mutant egg chambers shows that the directionality index of the mutant border cell clusters is reduced compared to wild-type clusters and that the speed of migration independent of direction is also reduced in the mutant border cell clusters compared to wild type.
Mutant border cells show an increased rate of uptake of the lipophilic dye FM4-64 compared to wild-type controls.
mimnull has border follicle cell phenotype, suppressible by CortactinM7
mimnull has border follicle cell phenotype, suppressible by cindrRNAi.UAS/Scer\GAL4306
mimnull has border follicle cell phenotype, suppressible by Scer\GAL4306/cindrRNAi.PC.PD.UAS
mimnull is a suppressor of border follicle cell phenotype of Scer\GAL4306, cindrRNAi.PC.PD.UAS
mimnull is a suppressor of border follicle cell phenotype of Scer\GAL4306, cindrRNAi.UAS
mimnull is a suppressor of border follicle cell phenotype of CortactinM7
mimnull CortactinM7 double mutants have a wild-type border cell migration phenotype in the egg chamber.
Expression of cindrdsRNA.Scer\UAS under the control of Scer\GAL4306 in a mimnull background restores the ability of border cells in the egg chamber to migrate.
Expression of cindrdsRNA.PC.PD.Scer\UAS under the control of Scer\GAL4306 in a mimnull background restores the ability of border cells in the egg chamber to migrate.
mimnull is rescued by mimUAS.Tag:MYC,Tag:polyHis/Scer\GAL4306
Expression of mimScer\UAS.T:Hsap\MYC,T:Zzzz\His6 under the control of Scer\GAL4306 rescues the border cell migration defects seen in mimnull egg chambers.