Figure 4. Miple proteins do not recues the loss of Jeb phenotype in the visceral mesoderm.

(A-D) In jeb mutant embryos (Df(3L)BSC199/jeb^weli) VM founder cells (green) are not specified. Subsequently, the VM fails to undergo fusion (arrow in B; compare with control in A where Alk and FasIII (red) positive VM is well developed). Ectopic expression of Jeb in jeb mutant embryos rescues the VM developmental defect (arrow in C, compare with A and B), while expression of Miple1 is unable to rescue the jeb mutant phenotype (arrow in D).