Zebrafish Development: Difference between revisions
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| 10.33 - 24 hrs ||'''[[Segmentation Period]]''' ||[[File:Segmentation .png|The Segmentation Period. Photo supplied by Judy Cebra-Thomas]] | | 10.33 - 24 hrs ||'''[[Segmentation Period]]''' ||[[File:Segmentation .png|The Segmentation Period. Photo supplied by Judy Cebra-Thomas]] | ||
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| 24 - 48 hrs || '''[[Pharyngula Period]]''' || [[File:Pharyngula.png|The Pharyngula Period. Photo supplied by Judy Cebra-Thomas]] | | 24 - 48 hrs || '''[[#Pharyngula Period|Pharyngula Period]]''' || [[File:Pharyngula.png|The Pharyngula Period. Photo supplied by Judy Cebra-Thomas]] | ||
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| 48-72 hrs ||'''[[Hatching Period]]''' ||[[File:Hatching_.png|The Hatching Period. Photo supplied by Judy Cebra-Thomas]] | | 48-72 hrs ||'''[[Hatching Period]]''' ||[[File:Hatching_.png|The Hatching Period. Photo supplied by Judy Cebra-Thomas]] | ||
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===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 | |||
<gallery> | |||
File:Zebrafish day 1 SEM.jpg|day 1 | |||
File:Zebrafish brain fold SEM.jpg|brain fold | |||
File:Zebrafish myotomes SEM.jpg|myotomes | |||
File:Zebrafish trunk SEM01.jpg|trunk | |||
File:Zebrafish trunk SEM02.jpg|trunk | |||
File:Zebrafish perichordal sheath SEM.jpg|perichordal sheath | |||
File:Zebrafish enveloping layer SEM01.jpg|enveloping layer | |||
File:Zebrafish enveloping layer SEM02.jpg|enveloping layer | |||
<gallery> | |||
==Skull== | ==Skull== |
Revision as of 15:40, 12 December 2014
Embryology - 28 Mar 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> |
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==
- Diagrams depict the cartilage elements and bones that are NC-derived (green), and those that show no evidence of NC contribution, and are presumably derived from mesoderm (magenta).
- * Top - shows a dorsal view of the chondrocranium from an approximately 12 dpf larva.
- * Second - side view of the bones of an adult skull, with some elements of the pectoral girdle also shown.
- * Third - a dorsal view of the dorsal aspect of the adult skull.
- * Bottom - view is of the base of the neurocranium, with the pharyngeal skeleton removed.
- (text modified from figure legend)
- ==Molecular==
- ===Fibroblast Growth Factor===
- ==References==
- ===Journals===
- ===Reviews===
- ===Articles===
- ===Search Pubmed===
- ==Additional Images==
Terms
- 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
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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Glossary Links
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Cite this page: Hill, M.A. (2024, March 28) 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