... epidermis and right epidermis overlying the neural tube fuse to close the neural fold. During these processes, mitosis and the various morphogenetic movements need to be coordinated. In this study, we investigated the epidermal cell cycle in Ciona intestinalis embryos in vivo using a fluorescent...

... is essential for the characteristic morphogenetic movements of these two tissues. However, depletion of N-cadherin and E-cadherin did not cause dissociation in these tissues at the neurula stage, probably owing to the expression of C-cadherin in each tissue. Depletion of each of these cadherins is not rescued...

...,Republic of China. Contrary to that of interrenal cells, morphogenetic movement of pronephric cells is affected in flh, syu and yot mutant embryos( Majumdar and Drummond, 2000 ). It appears that interenal and pronephric cells receive different signals as migratory cues. The pronephric cells...

...Alexandre Djiane; Jean-François Riou; Muriel Umbhauer; Jean-Claude Boucaut; De-Li Shi ABSTRACT Wnt signalling plays a crucial role in the control of morphogenetic movements. We describe the expression and functional analyses of frizzled 7 ( Xfz7 ) during gastrulation in Xenopus . Low levels of Xfz7...

..., yet we failed to detect an effect of FrzA on the ability of Xwnt5a to block morphogenetic movements. FRP-1 inhibits functional activity of Xwnt8, but has only a weak effect on Xwnt-3a ( He et al., 1997 ). While SARP-2 negatively regulates intracellular concentration of β-catenin, SARP-1 leads to its...

... that, as early as stage HH10, the caudal limit of Otx2 expression separates mesencephalic from isthmo/cerebellar territories. Finally, this study revealed unexpected rostrocaudal morphogenetic movements taking place between stages HH10 and HH16 in the mediodorsal part of the caudal Otx2 -positive domain. 04...

... sorting cell adhesion morphogenesis morphogenetic movement tissue affinities self-assembly The spreading of one cell population over the surface of another is a common means of embryonic morphogenesis. The causal analysis of tissue spreading movements has been greatly advanced by the finding...

... brief period (1-2 days) during postimplantation development in the mouse, ft is, however, reliable for short-term lineage studies and for analysing morphogenetic movement and population kinetics over three to five cell generations. The position and alignment of endoderm descendants relative...