�ber die Entwicklung von Ascidienlarven nach fr�hzeitiger Entfernung der einzelnen organbildenden Keimbezirke

Ubisch, L. v.

doi:10.1007/bf00578751

Cited by 17 publications

(3 citation statements)

References 7 publications

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“…The elegance of a localized, maternally deposited “organ-forming substance” held such sway that it was thought for a long time that only the primary lineage, descended from the myoplasm-rich B4.1 blastomeres, gave rise to tail muscle cells in the tunicate larva. This view was held even in the face of experimental evidence of alternative sources of tail muscle cells [269, 341]. Lineage tracing of labeled blastomeres in various species revealed that, indeed, the muscle cells flanking the tip of the tail did not descend from the B4.1 blastomeres, but rather from the A4.1 and b4.2 blastomeres (Fig.…”

Section: Induction Of Secondary Tail Muscle Lineagesmentioning

confidence: 99%

Regulation and evolution of muscle development in tunicates

Razy-Krajka

Stolfi

2019

EvoDevo

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For more than a century, studies on tunicate muscle formation have revealed many principles of cell fate specification, gene regulation, morphogenesis, and evolution. Here, we review the key studies that have probed the development of all the various muscle cell types in a wide variety of tunicate species. We seize this occasion to explore the implications and questions raised by these findings in the broader context of muscle evolution in chordates.

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Section: Induction Of Secondary Tail Muscle Lineagesmentioning

confidence: 99%

Regulation and evolution of muscle development in tunicates

Razy-Krajka

Stolfi

2019

EvoDevo

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“…The developmental potencies of blastomeres in the animal and vegetal halves of ascidian eggs have been intensively studied at the 8‐cell stage ( Tung 1934; Vandebrock 1938; Rose 1939; Reverberi & Minganti 1951), but fewer studies have been made on later stages ( Ubisch 1939). In ascidians, the development of the neural tube is still a matter of dispute; and removal of some of the blastomeres cannot be compensated.…”

Section: Main Experimental Results and Comments On Tung’s Studies Of mentioning

confidence: 99%

Contribution of late Professor T. C. Tung to the experimental embryology of Amphioxus

Yan

1999

Dev Growth Differ

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Professor T. C. Tung ( Fig. 1) was a prominent experimental embryologist in China. He was born in Jin County, Zhejiang Province, China in 1902. After he obtained his Bachelor’s degree from the Department of Biology, Fudan University, Shanghai in 1927, he was appointed as a teaching assistant in that department until he moved to Belgium in 1930. He studied as a graduate student in Professors A. Brachet and A. M. Dalcq’s laboratory at the Universite Libre de Bruxelles, Belgium and obtained his Doctor of Science degree there in 1934. During that period, he made two short working visits to the Institute of Marine Biology in France and took one training course at Cambridge University (UK). In 1934, he was invited to return to China as a Full Professor to teach at several Chinese universities, (Shandong University in Qingdao, Shandong Province; the National University in Nanjing; and Fudan University in Shanghai). He spent 1 year at Yale University (USA) between 1948 and 1949 as an invited scientist in a joint research project and finally returned to China in 1949. He was Chairman of the Department of Zoology, Shandong University in Qingdao (1949~1952), Vice‐President of Shandong University (1952~1960), Director of the Marine Biological Institute, the Chinese Academy of Sciences (CAS) in Qingdao (1949~1958), Director of the Institute of Oceanology (CAS) in Qingdao (1959~1966), Director of the Institute of Zoology (CAS) in Beijing (1960–1962), member of CAS since 1955, Vice‐Chairman of the Biological and Geographical Division of CAS (1955~1958), Chairman of the Biological Division of CAS (1959~1979) and Vice‐President of CAS in Beijing (1978–1979). In spite of his administrative duties, he spent most of his life conducting bench work in his laboratories at the Institutes of Oceanology and Zoology, CAS, respectively, until he passed away in March 1979. Professor Tung’s main research interest was with classic experimental studies on the determination of the egg axis and symmetry planes of fertilized eggs, early differentiation and organizing substances of egg cytoplasm, induction between embryonic cells and cytoplasm in embryogenesis, immunological studies on nuclear transplanted eggs, and cell fusion etc., in several types of animals. He conducted his experiments on a number of invertebrates (ascidians and Amphioxus) and vertebrates (fish and amphibians) by means of very skilful microsurgical operations and the nuclear transplantation method. Among these topics, his studies on the organization and developmental potency of Amphioxus eggs were unique. His important contribution to this research field involved not only establishing a practical method for collecting and using this rare animal for experimental purposes, but also clarifying controversy about the nature and early development of its eggs. He also provided conclusive evidence to determine its evolutionary position between invertebrates and vertebrates.The present article briefly reviews the main results obtained by Professor Tung and his colleagues on Amphioxus. ...

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“…Der CONKLIN 1905, 1931, BER-RILL 1929, DALCQ 1938, v. UBISCH 1939 LEHMANN 1926, 1935, BAUTZMANN 1928, HOLTFRETER 1933…”

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confidence: 99%

Über Die Folgen Von Chordaexstirpation an Späten Gastrulae Und Neurulae Von Ambystoma Punctatum

Hörstadius¹

1944

Acta Zoologica

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�ber die Entwicklung von Ascidienlarven nach fr�hzeitiger Entfernung der einzelnen organbildenden Keimbezirke

Cited by 17 publications

References 7 publications

Regulation and evolution of muscle development in tunicates

Regulation and evolution of muscle development in tunicates

Contribution of late Professor T. C. Tung to the experimental embryology of Amphioxus

Über Die Folgen Von Chordaexstirpation an Späten Gastrulae Und Neurulae Von Ambystoma Punctatum

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