Fig. 5. ARF6 endosomes at the Pav central spindle during cytokinesis.
(A,B) Fixed primary spermatocytes. (A,B) ARF6HA (red) and Pav (blue)
immunostaining and Rab-GFP [green; Rab4 (A) and Rab11 (B)]. ARF6HA colocalizes
with GFP-Rab4 (A) and GFP-Rab11 (B) at the central spindle (arrowheads).
(C) Colocalization frequency of GFP-Rab4 (n=17 cells) and
GFP-Rab11 (n=13 cells) with ARF6HA at the central spindle during
cytokinesis (grey) or elsewhere in the cell (blue). Error bars represent
s.e.m. (D) Primary spermatocyte initiating furrow. ARF6HA (red) is
already partially localized to the central spindle (arrowheads), labelled with
Pav-GFP (green). DAPI labels chromosomes (blue). Scale bars: 5 µm.