Abstract
The fact that dermal condensations are not, as they are in feather development, involved in early scale morphogenesis in birds suggests that in the mutant talpid3, where mesenchymal cell surface and motility properties are impaired, scales might develop relatively normally though feathers do not. This prediction has been checked using chorioallantoic membrane grafts of talpid and normal hind limbs, and found to be substantially justified although the abnormal overall shape of the talpid limb has a distorting effect on scale patterning. However, the abnormal talpid dermis seems to have effects on the direction and extent of epidermal invagination at scale margins. Since the control of epidermal invagination is a relatively unexplored area, this is a particularly useful finding.
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- Dhouailly D., Sawyer R. H. Avian scale development. XI. Initial appearance of the dermal defect in scaleless skin. Dev Biol. 1984 Oct;105(2):343–350. doi: 10.1016/0012-1606(84)90291-4. [DOI] [PubMed] [Google Scholar]
- EDE D. A., KELLY W. A. DEVELOPMENTAL ABNORMALITIES IN THE HEAD REGION OF THE TALPID MUTANT OF THE FOWL. J Embryol Exp Morphol. 1964 Mar;12:161–182. [PubMed] [Google Scholar]
- EDE D. A., KELLY W. A. DEVELOPMENTAL ABNORMALITIES IN THE TRUNK AND LIMBS OF THE TALPID3 MUTANT OF THE FOWL. J Embryol Exp Morphol. 1964 Jun;12:339–356. [PubMed] [Google Scholar]
- Ede D. A., Agerbak G. S. Cell adhesion and movement in relation to the developing limb pattern in normal and talpid mutant chick embryos. J Embryol Exp Morphol. 1968 Aug;20(1):81–100. [PubMed] [Google Scholar]
- Ede D. A., Bellairs R., Bancroft M. A scanning electron microscope study of the early limb-bud in normal and talpid3 mutant chick embryos. J Embryol Exp Morphol. 1974 Jun;31(3):761–785. [PubMed] [Google Scholar]
- Ede D. A., Hinchliffe J. R., Mees H. C. Feather morphogenesis and feather pattern in normal and talpid mutant chick embryos. J Embryol Exp Morphol. 1971 Feb;25(1):65–83. [PubMed] [Google Scholar]
- Ettensohn C. A. Mechanisms of epithelial invagination. Q Rev Biol. 1985 Sep;60(3):289–307. doi: 10.1086/414426. [DOI] [PubMed] [Google Scholar]
- Mauger A., Demarchez M., Herbage D., Grimaud J. A., Druguet M., Hartmann D., Sengel P. Immunofluorescent localization of collagen types I and III, and of fibronectin during feather morphogenesis in the chick embryo. Dev Biol. 1982 Nov;94(1):93–105. doi: 10.1016/0012-1606(82)90072-0. [DOI] [PubMed] [Google Scholar]
- McLachlan J. C. A simple method of preparing chick eggs for chorio-allantoic grafts. Experientia. 1982 Jan 15;38(1):141–142. doi: 10.1007/BF01944577. [DOI] [PubMed] [Google Scholar]
- O'Guin W. M., Sawyer R. H. Avian scale development. VII. Relationships between morphogenetic and biosynthetic differentiation. Dev Biol. 1982 Feb;89(2):485–492. doi: 10.1016/0012-1606(82)90336-0. [DOI] [PubMed] [Google Scholar]
- Sawyer R. H., Craig K. F. Avian scale development. Absence of an "epidermal placode" in reticulate scale morphogenesis. J Morphol. 1977 Oct;154(1):83–93. doi: 10.1002/jmor.1051540106. [DOI] [PubMed] [Google Scholar]