.... 3. Tissue and cell dynamics after mechanical load. (A) Schematic and images from a loaded avian embryo. The red triangle in the diagram indicates the probe tip. The black arrow indicates the direction of the force. Posterior body axis and extra-embryonic regions (including zona opaca...

... of order/disorder as well as symmetry/asymmetry, revealing developmental instabilities that are part of normal morphogenesis. Craniofacial Avian embryo Frontonasal Fluctuating asymmetry Mathematical analysis Live cell imaging Organ culture Actomyosin Facial morphogenesis requires...

.... Published by The Company of Biologists Ltd 2013 Avian embryo Mouse Gli Myf5 Myotome Somite References Ahn S. , Joyner A. L. ( 2004 ). Dynamic changes in the response of cells to positive hedgehog signaling during mouse limb patterning . Cell 118 , 505 – 516...

... cells divide with a planar orientation. Here, we report that in the avian embryo, in addition to self-renewing, a subset of progenitors translocates into the myotome where they generate differentiated myocytes. By contrast, in the late epithelium, individual progenitors divide perpendicularly to produce...

... proceeds in both rostral-to-caudal and medial-to-lateral directions. The mechanisms underlying formation of this unique wave of pioneer myofibers remain unknown. We show that rostrocaudal or mediolateral somite inversions in avian embryos do not alter the original directions of pioneer myoblast migration...

... is limited. * Author for correspondence ( [email protected] ) Competing interests statement 16 12 2009 © 2010. Avian embryo Dorsal root ganglia EdnrB2 FoxD3 Melanocyte Neural tube Schwann cells Snail2 Sox9 Sympathetic ganglia...

... give an explanation for the short life of aortic hematopoiesis. * Author for correspondence (e-mail: [email protected] ) 3 1 2006 © 2006. 2006 Avian embryo Aorta Hemangioblasts Hematopoiesis Endothelium Somite Vascular smooth muscle...

... mechanisms underlie the establishment of pioneer and later myotomal waves. * Author for correspondence (e-mail: [email protected] ) 18 1 2006 © 2006. 2006 Adherens junctions Asymmetric cell division Avian embryo Cell adhesion Dermis Dermomyotome Desmin...

... development. Anat. Embryol.(Berl.) 191 , 381 -396. Christ, B., Jacob, M. and Jacob, H. J. ( 1983 ). On the origin and development of the ventrolateral abdominal muscles in the avian embryo. An experimental and ultrastructural study. Anat. Embryol. (Berl). 166 , 87 -101. Cinnamon, Y., Kahane, N...

... of Developmental Neurobiology, The NIMR, The Ridgeway, Mill Hill, NW7 1AA, London, UK 31 8 2004 © 2004. 2004 Avian embryo Cell cycle Cyclin D1 Epithelial to mesenchymal transition Neural tube Somite The neural crest (NC) is a unique population of embryonic progenitors...

.... A. Ede, J. R. Hinchliffe and M. Balls), pp. 421 -431. Cambridge: Cambridge University Press. Christ, B., Jacob, M. and Jacob, H. J. ( 1983 ). On the origin and development of the ventrolateral abdominal muscles in the avian embryo. An experimental and ultrastructural study. Anat. Embryol. 166...

...-suff.cc.huji.ac.il ) 5 3 2002 © 2002. 2002 Avian embryo Cell delamination Desmin Dermomyotome Epithelial-mesenchymal conversion Myoblast migration Pioneer myoblasts Somite In the early embryo, muscle progenitor cells arising in the somites differentiate into myofibers that give rise...

... counteract a built-in cell death program and thereby contribute to organ morphogenesis, in particular in the central nervous system. *Author for correspondence (e-mail: [email protected] ) 19 7 2001 © 2001. 2001 Apoptosis Avian embryo Cell death Cell survival Floor plate...

... formation in the chick. Anat. Embryol . 177 , 191 -201. Kahane, N., Cinnamon, Y. and Kalcheim, C. ( 1998 a). The origin and fate of pioneer myotomal cells in the avian embryo. Mech. Dev . 74 , 59 -73. Kahane, N., Cinnamon, Y. and Kalcheim, C. ( 1998 b). The cellular mechanism by which...

... © 2000 by Company of Biologists 2000 Avian embryo BMP Cadherin Cell delamination Dermomyotome Epithelial-mesenchymal conversion RhoB Slug TGFβ The neural crest (NC) arises in the lateral tips of the neural folds that become the dorsal midline upon formation of the neural tube...

...-stage avian embryos, BMP4 mRNA is homogeneously distributed along the longitudinal extent of the dorsal neural tube, whereas its specific inhibitor noggin exists in a gradient of expression that decreases caudorostrally. This rostralward reduction in signal intensity coincides with the onset...

...-mail: [email protected] ) * These authors have contributed equally to the study 19 07 1999 07 09 1999 © 1999 by Company of Biologists 1999 Avian embryo Dermomyotome Dorsomedial lip MyoD Myf-5 Myogenin Myogenesis Neural tube Somite PAX Pioneer myotomal...

... 1999 © 1999 by Company of Biologists 1999 Hemangiopoietic potential Angiopoietic potential Endoderm Ectoderm Avian embryo During early ontogeny of the vertebrate blood system, endothelial cells (EC) and hemopoietic cells (HC) are closely associated in two specific locations...

[email protected] ) 01 09 1998 20 11 1998 © 1998 by Company of Biologists 1998 Avian embryo Hematopoietic progenitor Endothelial cell VEGF-R2 CD45 LDL The endothelial network and the hemopoietic system develop in parallel and are strikingly intertwined in the yolk sac blood...

... 9 1998 30 9 1998 © 1998 by Company of Biologists 1998 Avian embryo QmyoD Qmyogenin Myogenesis Neural tube Somite Postmitotic cells Myoblast proliferation Satellite cells Studies addressing the development of the paraxial mesoderm have established...