...Matthew C. Gibson; Gerold Schubiger Surgically fragmented Drosophila appendage primordia (imaginal discs) engage in wound healing and pattern regulation during short periods of in vivo culture. Prothoracic leg disc fragments possess exceptional regulative capacity, highlighted by the ability...

... noggin dorsal/ventral patterning neural tissue forebrain morphogen pattern regulation competence Xenopus Over the last decade, significant advances have been made in identifying tissue interactions and molecules that pattern the neural tube dorsoventrally. Ventrally, the neural tube...

... axis maintains with respect to the anterior-posterior axis. 08 01 1993 © 1993 by Company of Biologists 1993 pattern formation lateral inhibition origin of spatial information pattern regulation Toll The generation of the dorsal-ventral polarity in Drosophila embryos...

...-inducing signal. While the elements of the marginal colour pattern regulate to the shape and position of the new wing margin, the eyespots changed their shape and size but not their position upon partial ablation of the wing disk. When a cut was positioned near one of the dorsal eyespots, the outer rings...

... cell behaviour insect epidermis insect segment cell division positional values pattern regulation The theory of positional information ( Wolpert, 1969 , 1971 ) suggests that cells are informed of their position within a group of equivalent cells, the field. This positional information...

... cell behaviour segment border cell division insect epidermis pattern regulation Oncopeltus fasciatus The confrontation of cells from the anterior region of an abdominal segment of the milkweed bug, Oncopeltus fasciatus , with those from the posterior region results in the generation...

...Nigel Holder; Charleston Weekes ABSTRACT The pattern regulation process in amphibian limbs has been examined with respect to the presence of discontinuities in the anterior–posterior (a–p) axis. Limbs bearing such discontinuities were surgically created by contralateral exchange of either dorsal...

... in disc regulation by initiating cell proliferation and determining the mode of regulation (regeneration/ duplication). To test the latter proposal 15 types of wing disc fragments were examined for variability both in the mode of wound healing and the mode of pattern regulation. Two modes of wound healing...