Zebrafish Development
Embryology - 23 Apr 2024 Expand to Translate |
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Introduction
Zebrafish or zebra danio (danio rerio) are seen as the latest "model' for embryological development studies. These embryos have the great advantage that they develop as "see through" embryos, that is, all internal development can be clearly observed from the outside in the living embryo. Much of the early modern work using this embryo model began with the papers of Kimmel.[1][2]
Several large laboratories in the US are now developing large breeding programs to carry out "knockouts" and to find spontaneous mutants of interest.
Fish Links: Zebrafish Development | Medaka Development | Salmon Development | Movie - Zebrafish Heart | Student Group Project - Zebrafish | Recent References | Category:Zebrafish | Category:Medaka |
Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Zebrafish Embryology <pubmed limit=5>Zebrafish Embryology</pubmed> |
Movies
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Timeline and Stages of Embryonic Development
Duration | Period Name | Image |
0 - 0.75 hrs | Zygote Period | |
0.75 - 2.25 hrs | Cleavage Period | |
2.25 - 5.25 hrs | Blastula Period | |
5.25 - 10.33 hrs | Gastrula Period | |
10.33 - 24 hrs | Segmentation Period | |
24 - 48 hrs | Pharyngula Period | |
48-72 hrs | Hatching Period | |
72 hrs - 30 Days | Larval Period |
Pharyngula Period
- Transition from Prim 5 to Long-pec
- The body axis begins to straighten and the head straightens out and lifts dorsally
- Notochord is well developed
- Formation of the Dorsal and Ventral Stripe
- Nervous system is hollow and expanding anteriorly
- The brain has developed into 5 distinct lobes
- Seven pharyngeal arch's develop rapidly during this stage
- Pectoral fins begin to develop
- The Circulatory system develops and the heart beats for the first time
- Blood begins to circulate through a closed circuit of channels
- Tactile sensitivity appears and uncoordinated movements occur
Skull
Zebrafish Skull Neural Crest Contribution[8]
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Molecular
Fibroblast Growth Factor
- Fgf8 and Fgf3 - regulating the segmentation of the pharyngeal endoderm into pouches. [9]
- Fgf24 and Fgf8 - promotes posterior mesodermal development.[10]
- Sox9 - required for cartilage morphogenesis.[11]
References
- ↑ <pubmed>7229136</pubmed>
- ↑ <pubmed>3077108</pubmed>
- ↑ 3.0 3.1 <pubmed>22039349</pubmed>
- ↑ <pubmed>24700857</pubmed>
- ↑ <pubmed>23714426</pubmed>
- ↑ <pubmed>21609443</pubmed>
- ↑ <pubmed>20419147</pubmed>
- ↑ Kague E, Gallagher M, Burke S, Parsons M, Franz-Odendaal T, et al. (2012) Skeletogenic Fate of Zebrafish Cranial and Trunk Neural Crest. PLoS ONE 7(11): e47394. doi:10.1371/journal.pone.0047394 PLoS ONE
- ↑ <pubmed>15509770</pubmed>
- ↑ <pubmed>12925590</pubmed>
- ↑ <pubmed>12397114</pubmed>
Journals
Zebrafish "is the only peer-reviewed journal to focus on the zebrafish, which has numerous valuable features as a model organism for the study of vertebrate development. Due to its prolific reproduction and the external development of the transparent embryo, the zebrafish is a prime model for genetic and developmental studies, as well as research in toxicology and genomics. While genetically more distant from humans, the vertebrate zebrafish nevertheless has comparable organs and tissues, such as heart, kidney, pancreas, bones, and cartilage." [jour PubMed listing]
Reviews
<pubmed>21501748</pubmed> <pubmed>20674361</pubmed> <pubmed>19557689</pubmed> <pubmed>19371733</pubmed> <pubmed>18992377</pubmed>
Articles
Search Pubmed
Search Pubmed: Zebrafish Development
Additional Images
Terms
- deep cell layer - (DEL) formed after blastula stage that forms the three germ layers (ectoderm, mesoderm, and endoderm).
- epiboly - (Greek, "epibol" = a throwing or laying on) Term describing the division and movement of ectodermal cells during gastrulation, thinning and spreading this layer to cover the whole of the embryo. Cellular movements are thought to occur in all vertebrates, but have been most clearly identified in both the zebrafish and frog (xenopus laevis).
- enveloping layer - (EVL) an epithelial monolayer formed after blastula stage that undergoes epiboly.
- Kupffer's vesicle - (ciliated organ of asymmetry, primitive node) a transient epithelial fluid-filled sac located midventrally posterior to the yolk cell or its extension. The vesicle has been described as equivalent to the primitive node for establishing embryo left-right (L-R) axis. PMID 21876750
- yolk syncytial layer - (YSL) membrane-enclosed group of nuclei that lie on top of the yolk cell formed after blastula stage that undergoes epiboly.
External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.
- NIH NIH Zebrafish Initiative
- ZFIN - The Zebrafish Model Organism Database
- Keller at European Molecular Biology Laboratory, Germany Movies - Reconstruction of zebrafish early embryonic development by scanned light sheet microscopy
- YouTube Timelapse recording of about 18 hours of embryonic development of the zebrafish with some annotation
Online Atlases
- Fish Face Atlas 3D-interactive atlas of craniofacial development in the zebrafish Danio rerio.
- Zebrafish Atlas
- 3D Atlas of Zebrafish Vasculature Anatomy
- Zebrafish Brain Atlas
- Atlas of Zebrafish Anatomy
- Atlas of Zebrafish Development
- Zebrafish Anatomy Portal
- FishNet 3D developmental atlas
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Cite this page: Hill, M.A. (2024, April 23) Embryology Zebrafish Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Zebrafish_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G