Fig. 3.

Parallel microtubule tracks positively regulate new microtubule growth. (A) Diagrams of microtubule layout in control, Klp64D or Patronin knockdown neurons are shown for a dendrite branch point. (B) Example images of ddaE dendrite branch points from neurons co-expressing td-EOS-α-tubulin with control, Klp64D or Patronin RNAi. (C) Example kymographs of ddaE neurons co-expressing Eb1-GFP with Klp64D or Patronin RNAi. Kymographs were generated at distal exits of dendrite branch points. (D) Quantification of success rates at branch point exits of neurons expressing control or Patronin RNAi. Data from control neurons from Fig. 2G are included for comparison. ***P<0.001 (Fisher's exact test).