Fig. 8.
Dynamics of E-cadherin (ECad) and Canoe (Cno) in cta; t48 and snail mutant embryos. (A, B) In embryos lacking the G protein Concertina and the transmembrane protein T48, the junctional proteins E-cadherin and Canoe are disassembled from their subapical positions and fail to be reassembled. Their positions in the ectodermal epithelium are unaffected and can be seen in the cells at the right and left of the mesodermal region. (C, D) E-cadherin and Canoe are not cleared from their ectoderm-specific positions in snail mutant embryos. The mesodermal region in mutants is identified by the morphology of the whole embryo. cta; t48 embryos were from ctaR10; Df(3R)CC1.2 homozygous mothers mated to ctaR10/CyO; Df(3R)CC1.2/Df(3R)CC1.2 males. Homozygous snail mutant embryos were Df(2L)TE116GW11. Magnification, ×63; scale bar, 12 μm.