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Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
Dev Biol. Author manuscript; available in PMC 2010 April 30.
Published in final edited form as:
Dev Biol. 2009 March 15; 327(2): 313–326.
Published online 2008 December 24. doi: 10.1016/j.ydbio.2008.12.010


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EfnB2a promotes cell adhesion in r4 independent of EphA4

18hpf mosaic embryos shown in dorsal view with anterior to the left. Left panels are merged images of individual channels shown in the middle and right panels. Donor cells (middle panel), are labeled with rhodamine dye (red in the merge; A,B,E,F,G) or express GFP (green in the merge; C,D). Rhombomere-specific markers (right panel): r3 and r5 are identified by expression of GFP in pGFP5.3 transgenic hosts (green in the merge; A,B,E,F,G) or detected by α-EphA4 (red in the merge; D); α-EfnB2a marks r1, r4, r7 (red in the merge; C). r4 is indicated by a white bracket in the merge. (A) WT cells contribute evenly to a WT host hindbrain. (B) EphA4 MO donor cells are excluded from r3 and r5 of a WT host. (C) EfnB2a MO donor cells are excluded from r4 and r7 (yellow bracket) of a WT host embryo. (D) WT donor cells form unilateral clusters on one side of r4 of an EfnB2a MO host. (E) EphA4 MO donor cells are excluded from r3 and r5 and form a unilateral cluster in r4 of an EfnB2a MO host embryo. (F) EfnB2a; EphA4 double MO donor cells are excluded from r3, r4, and r5 of WT host embryos. (G) EphA4; EfnB2a double MO donor cells contribute homogeneously to the hindbrain of a double MO host embryo. Scale bar: 50μm.

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