ON THE DEVELOPMENT OF FEATHERS

@article{Lillie1942ONTD,
  title={ON THE DEVELOPMENT OF FEATHERS},
  author={Frank Rattray Lillie},
  journal={Biological Reviews},
  year={1942},
  volume={17}
}
I. Feather papillae are regarded as individually persistent throughout life, from the time of their origin between the sixth and ninth days of embryonic life. In each feather tract the order of origin is significantly related to dynamic field properties of the tract, such as growth rates, degrees of asymmetry, etc. 
FUNCTIONAL PERSISTENCE OF EMBRYONIC DETERMINATIONS IN FEATHERS AND LATE DEVELOPMENTAL STAGES IN SPURS
  • M. Juhn
  • Biology, Medicine
  • Annals of the New York Academy of Sciences
  • 1952
The plumage coat of fowl, as in other birds, is divided into feather tracts that are separated by predominantly bare areas of the skin, the apteria. The various tracts become apparent in the embryoExpand
Experimental Alteration of Growth Rate in Chimaeric Feathers of Breast-Saddle Origin in the Brown Leghorn Capon
  • Hsi Wang
  • Biology
  • Physiological Zoology
  • 1945
TLDR
An interesting situation consequently presents itself when B and S cells are combined to form the epidermal compounding of the tract specificity of the Brown Leghorn fowl. Expand
Activity Change of Phosphatases of Bird Skin during Feather Regeneration
TLDR
The dermal papilla has power to induce the feather proper in the epidermal cells covering its surface, and it elaborates the vascular pulp constantly from its upper surface during the feather regeneration. Expand
The Mechanism of Feather Replacement during Natural Molt
TLDR
The evidence to be presented in this paper indicates that this latter mechanism of feather replacement is more widespread among birds than previously believed and that natural molt is actively concerned only with the incoming generation. Expand
The Integumentary Morphology of Modern Birds—An Overview1
SYNOPSIS. Avian integument is thin, elastic, and loosely attached to the body, giving birds the freedom of movement needed for flight. Its epidermis is both keratinized and lipogenic, and the skin asExpand
The Integumentary Morphology of Modern Birds—An Overview1
TLDR
Feathers are the most numerous, elaborate, and diverse of avian integumentary derivatives due to the possibilities inherent in their basic plan of a shaft with two orders of branches and the use of modified beta-keratin as a strong, light, and plastic building material. Expand
Deposition of Histoplasma capsulatum in the subcutaneous tissues and feathers of inoculated chick embryos.
Subcutaneous inoculation of chick embryos with the yeast phase of Histoplasma capsulatum resulted in vascular dissemination with deposition of the organism in the feather pulp and dermis. TheExpand
488 WATSO . % Feather Replacement [ Auk
MOST ornithological reference books state that natural molt is a twopart process entailing loss of old feathers, "ecdysis," and subsequent growth of new feathers, "endysis" (Stresemann, 1927; Mayaud,Expand
Born in a follicle--a historical perspective.
  • P. Maderson
  • Biology, Medicine
  • Differentiation; research in biological diversity
  • 2004
TLDR
The current emphasis on the study of diffusible molecules involved in papilla-follicle interactions in hair development and replacement can only be understood in the context of the interwoven history of questions relating sequentially to evolutionary homology, physiological controls of tissue homeostasis, embryonic induction, and, most recently, molecular genetics. Expand
Theory of the growth and evolution of feather shape.
TLDR
The first explicit theory of the growth of feather shape is presented, defined as the outline of a pennaceous feather vane, and it is proposed that the absolute growth rate of the barbs and rachis ridges, not the vertical growth rate, is uniform throughout the follicle. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 76 REFERENCES
The Morphogenesis of down Feathers with Special Reference to the Developmental History of Melanophores
PIGMENT cells from various breeds or species of birds can be introduced into feather germs of host embryos of different breeds by transplanting potential melanophores into the base of the right wingExpand
Studies on the Epidermal Structures of Birds
TLDR
The phylogenetic sequence of events relating embryonic to definitive feathers is inconclusive, and it cannot be said with certainty whether the embryonic down feather is a secondary modification of the ordinary contour feather, or whether the latter has been evolved from a primitive down-like primary feather. Expand
Bilateral Gynandromorphism in Feathers
LILLIE and Juhn1 suggested that the reactivity to œstrone sometimes manifested only on one side of a feather depends upon a low growth-rate of the tissue at the time, which rate they considered mayExpand
The Physiology of Development of Feathers. I. Growth-Rate and Pattern in the Individual Feather
TLDR
The feather papilla is studied as a model for the development of the feather germ and the definitive feather is described. Expand
Developmental Analysis in Plumage. I. The Individual Feather: Methods
TLDR
In the series of papers in this number of Physiological Zoilogy, analysis with particular reference to the relation of measurable characteristics in the feather to the sequence of embryonic events in the regenerating germ is extended. Expand
The Control of Feather Color Pattern by Melanophores Grafted from One Embryo to Another of a Different Breed of Fowl
TLDR
In grafting the skin of one embryo to another of a different breed, a means is furnished for analyzing the expression of the different genetically determined potentialities of the combined tissues in the characterization of the feather. Expand
Developmental Analysis in Plumage. III. Field Functions in the Breast Tracts
TLDR
The degree of correspondence between vane-halves of the individual feather varies over a remarkable range, and the distribution of differing symmetry types within plumage tracts has been treated quantitatively by Landauer (1930) and Lillie and Juhn (1932). Expand
Skin Transplantation as a Means of Analyzing Factors in Production and Growth of Feathers.
In most breeds of fowl there is a well marked sexual dimorphism in the color and structure of adult feathers. Experimental or pathological alteration of the endocrine balance has been shown 1 toExpand
Individual Feather Succession in the Hybrid Capon.∗
The plumage of the F-1 males resulting from a cross in either direction between Barred Rocks and Brown Leghorns in general resembles that of the Barred Rock though the pattern is not strictlyExpand
Pattern Analysis in Plumage. II. Methods of Definitive Feather Analysis
TLDR
Methods which have been developed to give the desired measurements on barb length and barb frequency with precision and reasonable rapidity are reported here. Expand
...
1
2
3
4
5
...