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Keywords: Positional information
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Journal Articles
Journal: Development
Development (2022) 149 (7): dev200125.
Published: 30 March 2022
... feedback inhibition controls neoblast differentiation to regulate reversible growth of the planarian brain . Development 142 , 4217 - 4229 . Hill , E. M. and Petersen , C. P. ( 2018 ). Positional information specifies the site of organ regeneration and not tissue maintenance...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2020) 147 (9): dev188821.
Published: 6 May 2020
..., we show that Sonic hedgehog (Shh) signalling in the embryonic chick wing bud specifies positional information required for the formation of adult flight feathers in a defined spatial and temporal sequence that reflects their different identities. We also reveal that Shh signalling is interpreted...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2019) 146 (24): dev185967.
Published: 20 December 2019
...James Sharpe ABSTRACT Two phrases attributed to Lewis Wolpert – ‘positional information’ and ‘The French Flag Model’ – have become so intertwined that they are now used almost interchangeably. Here, I argue that this represents an unfortunate oversimplification of Wolpert's ideas that arose...
Journal Articles
Journal: Development
Development (2019) 146 (24): dev177709.
Published: 20 December 2019
...Daniel Čapek; Patrick Müller ABSTRACT In order to contribute to the appropriate tissues during development, cells need to know their position within the embryo. This positional information is conveyed by gradients of signaling molecules, termed morphogens, that are produced in specific regions...
Journal Articles
Journal: Development
Development (2017) 144 (23): 4298–4312.
Published: 1 December 2017
...-diffusion (RD)-based computational model and observed that the self-organization of pSMAD1 signaling was consistent with the RD principle. Consequent fate acquisition occurred as a function of both pSMAD1 signaling strength and duration of induction, consistent with the positional-information (PI) paradigm...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2016) 143 (19): 3514–3521.
Published: 1 October 2016
...-organization (enlarged 2 in Fig. 9 B). In this paper, we have only considered the interpretation of antero-posterior positional values into phalange number and not other morphological differences that give the digits their distinct identities. Fig. 9. Timing of positional information and self...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2009) 136 (15): 2613–2621.
Published: 1 August 2009
... the first adult type hematopoietic stem cells(HSCs). The ventral position of hematopoietic clusters closely associated with the aorta of most vertebrate embryos suggests a polarity in the specification of AGM HSCs. Since positional information plays an important role in the embryonic development of several...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2004) 131 (24): 6175–6184.
Published: 15 December 2004
... Fat within each ommatidium. In this report, I test and confirm the key predictions of this model by altering the patterns of Fj, Ds and Fat expression. It is shown that the gradients of Fj and Ds expression provide partially redundant positional information essential for specifying the polarization...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (1989) 107 (Supplement): 3–12.
Published: 1 April 1989
...Lewis Wolpert Positional information has been suggested to play a central role in pattern formation during development. The strong version of positional information states that there is a cell parameter, positional value, which is related to position as in a coordinate system and which determines...
Journal Articles
Journal: Development
Development (1989) 107 (Supplement): 65–74.
Published: 1 April 1989
... are currently less welldefined. Studies of chimeric individuals and observations of transcript accumulation in situ have demonstrated that the dpp gene is expressed along the A/P boundary of the imaginal disks. A possible role of dpp in elaborating positional information in imaginal disk development...
Journal Articles
Journal: Development
Development (1988) 104 (Supplement): 95–110.
Published: 1 October 1988
...Hans Meinhardt Recent experiments concerned with early Drosophila development require some modification of models proposed earlier. The addition of a positional information system spreading out from the anterior pole (as indicated by the bicoid mutation) allows very good size regulation. Additional...
Journal Articles
Journal: Development
Development (1988) 103 (Supplement): 245–249.
Published: 1 September 1988
... the different types of blood cell. positional information pattern formation epitheliomesenchymal interactions morphogenesis extracellular matrix Development 103 Supplement, 245-249 (1988) Printed in Great Britain © The Company of Biologists Limited 1988 245 Craniofacial development: a summing up L...
Journal Articles
Journal: Development
Development (1988) 103 (3): 413–429.
Published: 1 July 1988
...ROGER J. KEYNES; CLAUDIO D. STERN © 1988 by Company of Biologists 1988 vertebrate segmentation somite mesoderm pattern formation positional information cell cycle ‘clock and wavefront’ model cell lineage neural development central nervous system homeobox gene REFERENCES...