Dynamics of spindle microtubules and chromosomes during cycle 11 in a transgenic Drosophila embryo expressing GFP-tubulin (green) and histone-RFP (red). Only a single confocal plane containing the centrosomes was acquired during imaging. Images were acquired with exposure times of 1.8 s for GFP and 0.6 s for RFP, and total time shown is 432 s. This time series is the original data from Video 1 "Dynamics of spindle MTs and chromosomes during cycle 11 in a transgenic Drosophila embryo expressing GFPtubulin and histone-RFP" from Civelekoglu-Scholey et al.(2010) Prometaphase spindle maintenance by an antagonistic motor-dependent force balance made robust by a disassembling lamin-B envelope, J. Cell Biol. 188(1):49-68.
Embryos expressing GFP-tubulin and histone-RFP were collected at 25°C for 1 h, matured for 40 min, dechorionated, placed on heptane glue and covered with halocarbon oil. Images from this image group were acquired with an inverted IX-70 Olympus with Ultra-View spinning disk confocal head (PerkinElmer) and acquired with an oil immersion objective (UPlan-Apochromat 100x N.A. 1.35, or Plan-Apochromat 60x NA 1.4). Time series (at intervals of 3 to 10 sec) z-stacks of planes at 0.5 µm were acquired with an Orca II CCD camera (Hamamatsu Photonics). For further information see J. Cell Biol. 188(1):49-68.
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