Expression of the chicken homeobox-containing gene GHox-8 during embryonic chick limb development

1991 ◽  
Vol 34 (2-3) ◽  
pp. 143-154 ◽  
Author(s):  
Caroline N.D. Coelho ◽  
Lauro Sumoy ◽  
Barbara J. Rodgers ◽  
Duncan R. Davidson ◽  
Robert E. Hill ◽  
...  
Keyword(s):  
Limb Development ◽  
Embryonic Chick

The effect of 6-aminonicotinaniide on limb development

Development ◽  
1980 ◽  
Vol 55 (1) ◽  
pp. 307-318
Author(s):  
John C. McLachlan
Keyword(s):  
Special Reference ◽  
Growth And Development ◽  
Limb Development ◽  
Normal Growth ◽  
Embryonic Chick ◽  
Morphological Effect

The morphological effect of the nicotinamide analogue 6-aminonicotinamide on the development of the embryonic chick limb was studied, with special reference to muscle, cartilage, feather germ formation, and ossification. No evidence was found to support theories of control of differentiation by nicotinamide-like substances, although the effect of nicotinamide analogues has often been quoted as evidence for such theories. However, the effect of 6-AN in shortening the limb provides an opportunity to study the interaction of various tissues in normal growth and development, and the results are used to shed further light on the processes involved in muscle splitting, and feather germ formation.

Temporal and spatial transitions in collagen types during embryonic chick limb development

1973 ◽  
Vol 35 (2) ◽  
pp. 232-239 ◽  
Author(s):  
Thomas F. Linsenmayer ◽  
Bryan P. Toole ◽  
Robert L. Trelstad
Keyword(s):  
Limb Development ◽  
Embryonic Chick ◽  
Collagen Types ◽  
Temporal And Spatial

scholarly journals A positional information gradient of sonic hedgehog is required for flight feather formation in avian wings

2019 ◽  
Author(s):  
Lara Busby ◽  
Cristina Aceituno ◽  
Caitlin McQueen ◽  
Constance A. Rich ◽  
Maria A. Ros ◽  
...  
Keyword(s):  
Sonic Hedgehog ◽  
Limb Development ◽  
Positional Information ◽  
Embryonic Chick ◽  
Flight Feather ◽  
Avian Flight ◽  
Theropod Dinosaurs ◽  
Wing Bud ◽  
Tissue Recombination ◽  
Recombination Experiments

Flight is a triumph of evolution that enabled the radiation and success of birds. A crucial step was the development of forelimb flight feathers that may have evolved for courtship or territorial displays in ancestral theropod dinosaurs. Classical tissue recombination experiments performed in the chick embryo provide evidence that signals operating during early limb development specify the position and identity of feathers. Here we show that a positional information gradient of Sonic hedgehog (Shh) signalling in the embryonic chick wing bud specifies the pattern of adult flight feathers in a defined spatial and temporal sequence that reflects their different identities. We reveal that the Shh signalling gradient is interpreted into specific patterns of flight feather-associated gene expression. Our data suggests that flight feather evolution involved the co-option of the pre-existing digit patterning mechanism and therefore uncovers an embryonic process that played a fundamental step in the evolution of avian flight.

The preliminary characterization of mitogens secreted by embryonic chick wing bud tissues in vitro

Development ◽  
1986 ◽  
Vol 93 (1) ◽  
pp. 257-265
Author(s):  
K. M. Bell
Keyword(s):  
Growth Factors ◽  
Limb Development ◽  
Rat Kidney ◽  
Active Regions ◽  
Limb Bud ◽  
Embryonic Chick ◽  
Bovine Endothelial Cells ◽  
Normal Rat ◽  
Wing Bud

Embryonic chick wing bud tissues secrete diffusible mitogens when cultured in vitro (Bell & McLachlan, 1985). These molecules may play an important role in limb development since media conditioned by morphogenetically active regions of the wing bud possess greater mitogenic activity than media conditioned by non-morphogenetic regions. These studies show that while the chick-derived growth factors were mitogenic for mouse-derived NIH 3T3,10T1/2 and NR6 cells and chick limb bud cells, they did not stimulate DNA synthesis in 3B11, PC13 END, normal rat kidney or bovine endothelial cells. Furthermore, the effects of the chick-derived mitogens were synergistically enhanced by insulin and PGF2α but remained unaffected by ECDGF, EGF, FGF and MSA. These findings indicate that embryonic chick limb bud cells synthesize and secrete growth factors which resemble in function other well-characterized growth factors and in particular PDGF.

scholarly journals Fgf8 transcripts are located in tendons during embryonic chick limb development

2001 ◽  
Vol 108 (1-2) ◽  
pp. 203-206 ◽  
Author(s):  
Frédérique Edom-Vovard ◽  
Marie-Ange Bonnin ◽  
Delphine Duprez
Keyword(s):  
Limb Development ◽  
Embryonic Chick

GHox-7: A chicken homeobox-containing gene expressed in a fashion consistent with a role in patterning events during embryonic chick limb development

1992 ◽  
Vol 49 (2) ◽  
pp. 85-92 ◽  
Author(s):  
Caroline N.D. Coelho ◽  
Lauro Sumoy ◽  
Robert A. Kosher ◽  
William B. Upholt
Keyword(s):  
Limb Development ◽  
Embryonic Chick

Dexamethasone Effect on Embryonic Chick Respiratory Epithelium

1982 ◽  
Vol 40 ◽  
pp. 248-249
Author(s):  
M.R. Richter ◽  
R.V. Blystone
Keyword(s):  
Lung Development ◽  
Critical Role ◽  
Respiratory Epithelium ◽  
Chick Embryos ◽  
Embryonic Chick ◽  
White Leghorn ◽  
Lung Maturation ◽  
Synthetic Analogs ◽  
Lung Physiology ◽  
Avian Lung

Dexamethasone and other synthetic analogs of corticosteroids have been employed clinically as enhancers of lung development. The mechanism(s) by which this steroid induction of later lung maturation operates is not clear. This study reports the effect on lung epithelia of dexamethasone administered at different intervals during development. White Leghorn chick embryos were used so as to remove possible maternal and placental influences on the exogenously applied steroid. Avian lung architecture does vary from mammals; however, respiratory surfactant produced by the lung epithelia serves an equally critical role in avian lung physiology.

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