Fly stocks and genetic crosses were raised at 25°C unless otherwise stated. Fly stocks were kept in vials or bottles containing standard fly food (0.8% Drosophila agar, 5.8% Cornmeal, 5.1% Dextrose and 2.4% Brewer’s yeast). The following fly strains were used: vib133, vib1105, UAS-NYFP-Myc, UAS-CYFP-HA, UAS-NYFP-Myc-Vib, UAS-CYFP-HA-Sqh, UAS-Vib::Venus, UAS-VibT63A::Venus, UAS-VibT63E::Venus, UAS-PITPα::Venus and UAS-PITPβ::Venus (this study), fwd3, P{w+, PI4KIIIα} FRT80B and PI4KIIΔ (Julie, A. Brill), sqhAx3; p[w;sqh-GFP42], UAS-Cdc42::GFP (Akira Chiba), baz, FRT19A, w, Ubi-Rok-GFP (I) and w;; Ubi-Rok-GFP (III) (Bellaiche, Y), UAS-WAVE-HA-CYFP and UAS-Abi-Myc-NYFP(Bogdan, S). The following stocks were obtained from Bloomington Drosophila Stock Center: insc-Gal4 (BDSC#8751), elav-Gal4 (BDSC#8765), P{lacW}vibj5A6/TM6B,Tb (BDSC#12144), P{lacW}vibj7A3/TM3, Sb (BDSC#10308), Vib deficiency w; Df(3R)BSC850/TM6C,Sb,cu (BDSC#27922), sqhAX3,FRT19A/FM7c (BDSC#25712), sqh RNAi (BDSC#33892), w; Sqh-mCherry (BDSC#59024), PI4KIIIαC, FRT19A/FM7c (BDSC#57112), w; UAS-2xOsh2PH-GFP (BDSC#57353), w; UAS-2xOsh2PH-GFP/CyO; Pri/TM6B, Tb (BSDC#57352).
Crosses for RNAi knockdown and overexpression were incubated at 25°C for 24 hr before transferring to 29°C, where the larvae were aged for 72 hr. Wandering third instar larvae were dissected and processed for immunohistochemistry staining.
Koe C.T., Tan Y.S., Lönnfors M., Hur S.K., Low C.S., Zhang Y., Kanchanawong P., Bankaitis V.A, & Wang H. (2018). Vibrator and PI4KIIIα govern neuroblast polarity by anchoring non-muscle myosin II. eLife, 7, e33555.