Additional File 1.

(QuickTime format) WT movie. Figure 1C–H panels were taken from this movie at the indicated time points. GFP-positive cells are first observed around the 14 somite stage as bilateral patches in insulin:GFP transgenic embryos. These cells divide and actively migrate to the posterior. The net movement towards the midline is an indirect result of convergent-extension since active migration towards the midline is not observed. By the 24 hpf stage, GFP-positive cells are coalesced into a single islet in the posterior and midline relative to the starting position.

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Kim et al. BMC Biology 2005 3:23   doi:10.1186/1741-7007-3-23