... by the folded gastrulation gene coordinates cell shape changes during Drosophila gastrulation . Cell 76 , 1075 – 89 . 10.1016/0092-8674(94)90384-0 Davies , J. A. and Bard , J. B. ( 1998 ). The development of the kidney . Curr. Top. Dev. Biol . 39 , 245 – 301 . 10.1016/S0070...

... are achieved by the function of caudal in activating different target genes, namely folded gastrulation , which is required for invagination of the posterior gut primordium, and fork head and wingless , which are required to promote development of the internalized hindgut primordium. caudal is not sufficient...

... surface of the presumptive mesodermal cells and a constriction of their apical diameters. In embryos mutant for folded gastrulation ( fog ), these cell shape changes occur but the timing and synchrony of the constrictions are abnormal. A similar phenotype is seen in a maternal effect mutant, concertina...