The developmental capacity of regions of the unincubated chick blastoderm as tested in chorio‐allantoic grafts

Butler, Elizabeth A.

doi:10.1002/jez.1400700303

Cited by 28 publications

(5 citation statements)

References 22 publications

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“…The differentiation of muscle cells and the morphogenesis of muscles therefore seem to be two processes that are highly independent from one another. Numerous observations both in vivo and in vitro have established, that myoblasts can differentiate into muscle fibers without giving rise to muscles as organs (Butler 1935;Dienstmann et al 1974;Ellison et al 1969;Murray and Selby 1933). Our observation shows that the reverse is also possible: a well defined muscle can arise in the absence of muscle cells.…”

Section: Discussionmentioning

confidence: 99%

Muscle morphogenesis in the absence of myogenic cells

Grim

Wachtler

1991

Anat Embryol

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Experimental evidence indicates, that the myogenic cells themselves are not responsible for the muscle pattern formation. We report on a chance observation that reveals that muscle pattern formation can occur even in the absence of myogenic cells. Epiblastic cells from a quail embryo in the primitive streak stage were implanted into the wing bud of a chick embryo. The grafted quail cells developed into mononucleate, fibroblast-like cells that formed the muscle belly of the extensor medius longus muscle. This showed essentially normal form and topography as revealed by computer-aided 3D-reconstruction. This finding shows, that the formation of muscles does not depend on the presence of myogenic cells.

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Section: Discussionmentioning

confidence: 99%

Muscle morphogenesis in the absence of myogenic cells

Grim

Wachtler

1991

Anat Embryol

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“…Thus, cell interactions must repress endodermal fate (Wiegner and Schierenberg, 1998). Similar cell interactions preventing endoderm differentiation may also exist in chick as epiblast isolated at stage XII and cultured becomes gut irrespective of its original location although this observation has not recently been revisited in the molecular era (Butler, 1935). In normal development, only the posterior third normally does (Hatada and Stern, 1994) (Fig.…”

Section: Endoderm Origin and Specificationmentioning

confidence: 92%

Evolution of the mechanisms and molecular control of endoderm formation

Grapin-Botton

Constam

2007

Mechanisms of Development

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Endoderm differentiation and movements are of fundamental importance not only for subsequent morphogenesis of the digestive tract but also to enable normal patterning and differentiation of mesoderm- and ectoderm-derived organs. This review defines the tissues that have been called endoderm in different species, their cellular origin and their movements. We take a comparative approach to ask how signaling pathways leading to embryonic and extraembryonic endoderm differentiation have emerged in different organisms, how they became integrated and point to specific gaps in our knowledge that would be worth filling. Lastly, we address whether the gastrulation movements that lead to endoderm internalization are coupled with its differentiation.

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“…At the long-streak stage, heart developed only from the posterior half of the blastoderm. Neither Spratt's experiments nor the earlier investigations of Olivo (1928) and Butler (1935) offer any direct evidence as to whether heart-forming capacity is medially or bilaterally located at these early stages. The frequent occurrence of pulsating cardiac tissue on each side of the embryonic axis in these experiments may be attributed to mechanical separation of the heart primordia a t the time a t which fusion would have occurred.…”

Section: Initial Phases In Heart Formationmentioning

confidence: 88%

“…From these findings he concluded, "Man kann also schlieszen, dasx am Ende des Furchungsprozesses die Herzanlage determiniert ist." Butler (1935) was able to demonstrate that heart muscle would develop from both anterior and posterior halves of the prestreak blastoderm when isolated and transplanted to the chorioallantoic membrane of host-chick embryos. Olivo's report of the failure of the central square millimeter of the embryo to produce heart muscle was not tested.…”

Section: Initial Phases In Heart Formationmentioning

confidence: 99%