Universität zu Köln

Draga, Margarethe, Heim, Kathrin, Batke, Renate, Wegele, Martin, Proels, Felicitas and Scaal, Martin (2019). Somite development in the avian tail. J. Anat., 235 (4). S. 716 - 725. HOBOKEN: WILEY. ISSN 1469-7580

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Abstract

Somites are epithelial segments of the paraxial mesoderm. Shortly after their formation, the epithelial somites undergo extensive cellular rearrangements and form specific somite compartments, including the sclerotome and the myotome, which give rise to the axial skeleton and to striated musculature, respectively. The dynamics of somite development varies along the body axis, but most research has focused on somite development at thoracolumbar levels. The development of tail somites has not yet been thoroughly characterized, even though vertebrate tail development has been intensely studied recently with respect to the termination of segmentation and the limitation of body length in evolution. Here, we provide a detailed description of the somites in the avian tail from the beginning of tail formation at HH-stage 20 to the onset of degeneration of tail segments at HH-stage 27. We characterize the formation of somite compartment formation in the tail region with respect to morphology and the expression patterns of the sclerotomal marker gene paired-box gene 1 (Pax1) and the myotomal marker genes MyoD and myogenic factor 5 (Myf5). Our study gives insight into the development of the very last segments formed in the avian embryo, and provides a basis for further research on the development of tail somite derivatives such as tail vertebrae, pygostyle and tail musculature.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Draga, Margarethe UNSPECIFIED UNSPECIFIED UNSPECIFIED Heim, Kathrin UNSPECIFIED UNSPECIFIED UNSPECIFIED Batke, Renate UNSPECIFIED UNSPECIFIED UNSPECIFIED Wegele, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Proels, Felicitas UNSPECIFIED UNSPECIFIED UNSPECIFIED Scaal, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-133230
DOI:	10.1111/joa.13032
Journal or Publication Title:	J. Anat.
Volume:	235
Number:	4
Page Range:	S. 716 - 725
Date:	2019
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1469-7580
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MYOGENIC REGULATORY FACTORS; SKELETAL-MUSCLE; CHICK; DIFFERENTIATION; CELLS; EXPRESSION; NOTOCHORD; EMBRYOS; GENES; PAX-1 Multiple languages Anatomy & Morphology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13323