bk1 << twi << bk2
Breakpoint(s) molecularly mapped
In twi, sna double mutant embryos the primordial germ cells exit the gut primordium relatively normally and migrate dorsally towards the surface of the pocket which would normally appose the mesoderm.
Patches of wild type cells injected into a twi,sna double mutant embryos undergo typical ventral shape changes, nuclear movements and apical constrictions, as long as they are in a region that would normally be occupied by prospective mesoderm.
Homozygous females lay dorsalised eggs.