Results 21 to 30 of about 445,283 (270)

Avian Pigment Pattern Formation: Developmental Control of Macro- (Across the Body) and Micro- (Within a Feather) Level of Pigment Patterns

Frontiers in Cell and Developmental Biology, 2020
Animal color patterns are of interest to many fields, such as developmental biology, evolutionary biology, ethology, mathematical biology, bio-mimetics, etc. The skin provides easy access to experimentation and analysis enabling the developmental pigment
Masafumi Inaba, Cheng-Ming Chuong
doaj   +1 more source

On a model mechanism for the spatial patterning of teeth primordia in the Alligator [PDF]

, 1996
We propose a model mechanism for the initiation and spatial positioning of teeth primordia in the alligator,Alligator mississippiensis. Detailed embryological studies by Westergaard & Ferguson (1986, 1987, 1990) show that jaw growth plays a crucial role ...
Cruywagen, G. C., Ferguson, M. W. J., Kulesa, P. M., Lubkin, S. R., Maini, P. K., Murray, J. D., Sneyd, J. S.   +6 more
core   +2 more sources

Regulatory Network of the Scoliosis-Associated Genes Establishes Rostrocaudal Patterning of Somites in Zebrafish

iScience, 2019
Summary: Gene regulatory networks govern pattern formation and differentiation during embryonic development. Segmentation of somites, precursors of the vertebral column among other tissues, is jointly controlled by temporal signals from the segmentation ...
Sevdenur Keskin, M. Fethullah Simsek, Ha T. Vu, Carlton Yang, Stephen H. Devoto, Ahmet Ay, Ertuğrul M. Özbudak   +6 more
doaj   +1 more source

Mathematical models of morphogen gradients and their effects on gene expression [PDF]

, 2012
not ...
Baker, R. E., Shvartsman, S Y
core   +2 more sources

A modified Oster-Murray-Harris mechanical model of morphogenesis [PDF]

, 2013
There are two main modeling paradigms for biological pattern formation in developmental biology: chemical prepattern models and cell aggregation models. This paper focuses on an example of a cell aggregation model, the mechanical model developed by Oster,
Benjamin L. Vaughan, David Kay, Harris A. K., Murray J. D., Oster G. F., Philip K. Maini, Ruth E. Baker   +6 more
core   +1 more source

Gene copy number and negative feedback differentially regulate transcriptional variability of segmentation clock genes

iScience, 2022
Summary: Timely progression of a genetic program is critical for embryonic development. However, gene expression involves inevitable fluctuations in biochemical reactions leading to substantial cell-to-cell variability (gene expression noise). One of the
Oriana Q.H. Zinani, Kemal Keseroğlu, Supravat Dey, Ahmet Ay, Abhyudai Singh, Ertuğrul M. Özbudak   +5 more
doaj   +1 more source

Signaling to stomatal initiation and cell division

Frontiers in Plant Science, 2014
Stomata are two-celled valves that control epidermal pores whose opening and spacing optimizes shoot-atmosphere gas exchange. Arabidopsis stomata formation undergoes at least one asymmetric division and a symmetric division.
Jie eLe, Junjie eZou, Kezhen eYang, Ming eWang   +3 more
doaj   +1 more source

Can we build synthetic, multicellular systems by controlling developmental signaling in space and time? [PDF]

, 2007
Using biological machinery to make new, functional molecules is an exciting area in chemical biology. Complex molecules containing both ‘natural’ and ‘unnatural’ components are made by processes ranging from enzymatic catalysis to the combination of ...
Ismagilov, Rustem F., Maharbiz, Michel M.   +1 more
core   +1 more source

Distinct regulatory mechanisms act to establish and maintain Pax3 expression in the developing neural tube. [PDF]

PLoS Genetics, 2013
Pattern formation in developing tissues is driven by the interaction of extrinsic signals with intrinsic transcriptional networks that together establish spatially and temporally restricted profiles of gene expression. How this process is orchestrated at
Steven Moore, Vanessa Ribes, Javier Terriente, David Wilkinson, Frédéric Relaix, James Briscoe   +5 more
doaj   +1 more source

Diversity in the Development of the Neuromuscular System of Nemertean Larvae (Nemertea, Spiralia)

Frontiers in Ecology and Evolution, 2021
In studies on the development of nervous systems and musculature, fluorescent labeling of neuroactive substances and filamentous actin (f-actin) of muscle cells and the subsequent analysis with confocal laser scanning microscopy (CLSM), has led to a ...
Jörn von Döhren
doaj   +1 more source