a, Schematic representation of the genome-wide RNAi screen for the Tex phenotype. RNAi using pL4440 empty vector was used as negative control and pig-1(RNAi) was used as positive control3. b, Time-lapse confocal fluorescence micrographs of ced-3(lf); stIs10026[his-72::GFP]; nIs632[Pegl-1::mCherry::PH] embryos after indicated RNAi treatment at the indicated times. tve, time point of ventral enclosure. Arrowheads, ABplpappap. Scale bars, 10 μm.