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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): 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 (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 Articles
Journal: Development
Development (2016) 143 (19): 3514–3521.
Published: 1 October 2016
.... Highlighted Article: In the chick wing, the relative timing of the specification of antero-posterior positional values and self-organising mechanisms determines digit patterning and identity. Digits Limb Positional information Self-organization Shh Chick development Various models have...
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 Articles
Journal Articles
Journal: Development
Development (1998) 125 (21): 4145–4154.
Published: 1 November 1998
... expression of segmentation genes within the abdominal region of the embryo. In this study, we present evidence that kni and knrl link A/P positional information in larval wing imaginal discs to morphogenesis of the second longitudinal wing vein (L2). We show that kni and knrl are expressed in similar narrow...
Journal Articles
Journal: Development
Development (1998) 125 (11): 1999–2008.
Published: 1 June 1998
... and Schiefelbein, 1996 ), the contribution of hormones to positional information in embryos is less clear. In Phaseolus vulgaris , gibberellins produced by the suspensor enhance transcription in the embryo proper (Walthall and Brady, 1986). More significantly, the effects of polar auxin transport inhibitors...
Journal Articles
Journal: Development
Development (1997) 124 (22): 4481–4491.
Published: 15 November 1997
... of Biology, Carleton College, Northfield, MN 55057-4000, USA * Author for correspondence 4 September 1997 © 1997 by Company of Biologists 1997 Arabidopsis flower development ETTIN positional information Fig. 3. In situ hybridization detection of ETT...
Journal Articles
Journal: Development
Development (1995) 121 (5): 1519–1532.
Published: 1 May 1995
... of stochastically forming sectors of valve tissue abutting style cells abutting stigmatic cells, suggests that a positional information mechanism exists for juxtaposing these cell types, and that ETT is involved in polarizing this information in one direction. Besides its role in global patterning, the data...
Journal Articles
Journal Articles
Journal Articles
Journal: Development
Development (1992) 116 (4): 1101–1112.
Published: 1 December 1992
... 31 08 1992 © 1992 by Company of Biologists 1992 methylation muscle myosin light chain positional information rostrocaudal gradient transgene Early in embryogenesis, spatially regulated patterns of gene expression establish systems of positional information that eventually...
Journal Articles
Journal: Development
Development (1992) 116 (2): 467–479.
Published: 1 October 1992
... guidance. However, it is also possible that these transient gradients are markers of positional information that are important in other developmental events such as leg segmentation. We thank Robert Caldwell for performing the immunohisto-chemistry on frozen sections of tissue. This research was sup...
Journal Articles
Journal Articles
Journal: Development
Development (1991) 112 (3): 693–702.
Published: 1 July 1991
..., with the number of labeled glial cells varying with retinal position. * Current address: Memorial Sloan Kettering, New York, USA † Author for correspondence © 1991 by Company of Biologists 1991 positional information retinoic acid aldehyde dehydrogenase eye retina optic axons Müller...