Neurulation in the anterior trunk region of the zebrafish Brachydanio rerio

1993 ◽  
Vol 202 (5) ◽  
pp. 250-259 ◽  
Author(s):  
Beate Schmitz ◽  
Cyrus Papan ◽  
Jos� A. Campos-Ortega
Keyword(s):  
Brachydanio Rerio ◽  
Trunk Region ◽  
Anterior Trunk

scholarly journals Postcrania of large dissorophid temnospondyls from Richards Spur, Oklahoma

Fossil Record ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 79-91 ◽  
Author(s):  
Bryan M. Gee ◽  
Robert R. Reisz
Keyword(s):  
Taxonomic Diversity ◽  
Pelvic Girdle ◽  
Pectoral Girdle ◽  
Early Permian ◽  
Karst System ◽  
Trunk Region ◽  
Anterior Trunk ◽  
Posterior Trunk ◽  
Postcranial Anatomy

Abstract. The early Permian karst system near Richards Spur, Oklahoma preserves a diverse assemblage of terrestrial dissorophoid temnospondyls. Here we report the presence of a large-bodied dissorophine dissorophid that is represented by an articulated anterior trunk region, including a partial pectoral girdle, a ribcage characterized by extremely developed uncinate processes, and a rare, completely articulated pes. This represents the first documentation of the clade at the locality. Previously, dissorophids were represented only by the eucacopine Cacops. A complete pelvic girdle with hindlimbs is also referred to Cacops and represents the first material of the posterior trunk region to be described from the genus at Richards Spur. These specimens expand the taxonomic diversity known from the site and provide significant, well-preserved postcranial material that improves the characterization of dissorophid postcranial anatomy.

Cryopreservation of pre-hatch embryos of zebrafish (Brachydanio rerio)

1993 ◽  
Vol 6 (2) ◽  
pp. 145-153 ◽  
Author(s):  
Tiantian Zhang ◽  
David M. Rawson ◽  
G. John Morris
Keyword(s):  
Brachydanio Rerio

Analysis of the development of the nervous system of the zebrafish, Brachydanio rerio

Development ◽  
1968 ◽  
Vol 19 (2) ◽  
pp. 109-119
Author(s):  
Judith Shulman Weis
Keyword(s):  
Spinal Cord ◽  
Nervous System ◽  
Neural Crest ◽  
Neural Tube ◽  
Sympathetic Neurons ◽  
Dorsal Surface ◽  
Teleost Fishes ◽  
Brachydanio Rerio ◽  
Solid Structure ◽  
Derivatives Of

In teleost fishes, unlike many other vertebrates, the spinal cord originates as a solid structure, the neural keel, which subsequently hollows out. Unlike vertebrates in which the neural tube is formed from neural folds, and where the neural crest arises from wedge-shaped masses of tissue connecting the neural tube to the general ectoderm, teleosts do not possess a clear morphological neural crest. Initially, the dorsal surface of the keel is broadly attached to the ectoderm as described by Shepard (1961). As the neural primordia become larger and more discrete, the region of attachment narrows, and cells become loose (the ‘loose crest stage’). These cells represent the neural crest. Subsequently they begin to migrate and to differentiate into the various derivatives of neural crest. Both sensory and sympathetic neurons arise from neural crest. At the time of their migration the cells are not morphologically distinguishable.

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